In PHP version 8.0.* before 8.0.30,  8.1.* before 8.1.22, and 8.2.* before 8.2.8, when loading phar file, while reading PHAR directory entries, insufficient length checking may lead to a stack buffer overflow, leading potentially to memory corruption or RCE. 
Max CVSS
9.8
EPSS Score
0.13%
Published
2023-08-11
Updated
2023-10-27
In PHP versions 8.0.* before 8.0.30, 8.1.* before 8.1.22, and 8.2.* before 8.2.8 various XML functions rely on libxml global state to track configuration variables, like whether external entities are loaded. This state is assumed to be unchanged unless the user explicitly changes it by calling appropriate function. However, since the state is process-global, other modules - such as ImageMagick - may also use this library within the same process, and change that global state for their internal purposes, and leave it in a state where external entities loading is enabled. This can lead to the situation where external XML is parsed with external entities loaded, which can lead to disclosure of any local files accessible to PHP. This vulnerable state may persist in the same process across many requests, until the process is shut down. 
Max CVSS
8.6
EPSS Score
0.06%
Published
2023-08-11
Updated
2023-10-27
In PHP 8.0.X before 8.0.28, 8.1.X before 8.1.16 and 8.2.X before 8.2.3, excessive number of parts in HTTP form upload can cause high resource consumption and excessive number of log entries. This can cause denial of service on the affected server by exhausting CPU resources or disk space. 
Max CVSS
7.5
EPSS Score
0.06%
Published
2023-02-16
Updated
2023-05-17
In PHP 8.0.X before 8.0.28, 8.1.X before 8.1.16 and 8.2.X before 8.2.3, core path resolution function allocate buffer one byte too small. When resolving paths with lengths close to system MAXPATHLEN setting, this may lead to the byte after the allocated buffer being overwritten with NUL value, which might lead to unauthorized data access or modification. 
Max CVSS
8.1
EPSS Score
0.18%
Published
2023-02-16
Updated
2023-05-17
In PHP 8.0.X before 8.0.28, 8.1.X before 8.1.16 and 8.2.X before 8.2.3, password_verify() function may accept some invalid Blowfish hashes as valid. If such invalid hash ever ends up in the password database, it may lead to an application allowing any password for this entry as valid.
Max CVSS
7.7
EPSS Score
0.05%
Published
2023-03-01
Updated
2023-03-10
The Keccak XKCP SHA-3 reference implementation before fdc6fef has an integer overflow and resultant buffer overflow that allows attackers to execute arbitrary code or eliminate expected cryptographic properties. This occurs in the sponge function interface.
Max CVSS
9.8
EPSS Score
1.04%
Published
2022-10-21
Updated
2023-05-03
In PHP versions prior to 7.4.33, 8.0.25 and 8.2.12, when using imageloadfont() function in gd extension, it is possible to supply a specially crafted font file, such as if the loaded font is used with imagechar() function, the read outside allocated buffer will be used. This can lead to crashes or disclosure of confidential information.
Max CVSS
7.1
EPSS Score
0.06%
Published
2022-11-14
Updated
2022-12-23
In PHP versions 8.1.x below 8.1.8, when fileinfo functions, such as finfo_buffer, due to incorrect patch applied to the third party code from libmagic, incorrect function may be used to free allocated memory, which may lead to heap corruption.
Max CVSS
9.8
EPSS Score
0.24%
Published
2022-07-28
Updated
2022-10-25
In PHP versions 7.4.x below 7.4.30, 8.0.x below 8.0.20, and 8.1.x below 8.1.7, when pdo_mysql extension with mysqlnd driver, if the third party is allowed to supply host to connect to and the password for the connection, password of excessive length can trigger a buffer overflow in PHP, which can lead to a remote code execution vulnerability.
Max CVSS
8.8
EPSS Score
0.79%
Published
2022-06-16
Updated
2023-02-23
In PHP versions 7.4.x below 7.4.30, 8.0.x below 8.0.20, and 8.1.x below 8.1.7, when using Postgres database extension, supplying invalid parameters to the parametrized query may lead to PHP attempting to free memory using uninitialized data as pointers. This could lead to RCE vulnerability or denial of service.
Max CVSS
8.1
EPSS Score
0.36%
Published
2022-06-16
Updated
2023-02-23
pearweb < 1.32 suffers from Deserialization of Untrusted Data.
Max CVSS
9.8
EPSS Score
0.21%
Published
2022-04-15
Updated
2022-04-22
pearweb < 1.32 is suffers from a Weak Password Recovery Mechanism via include/users/passwordmanage.php.
Max CVSS
9.8
EPSS Score
0.20%
Published
2022-04-15
Updated
2022-04-22
PHP-Memcached v2.2.0 and below contains an improper NULL termination which allows attackers to execute CLRF injection.
Max CVSS
9.8
EPSS Score
0.28%
Published
2022-04-05
Updated
2022-04-18
In Archive_Tar before 1.4.14, symlinks can refer to targets outside of the extracted archive, a different vulnerability than CVE-2020-36193.
Max CVSS
7.1
EPSS Score
0.53%
Published
2021-07-30
Updated
2022-01-01
In PHP versions 7.4.x below 7.4.28, 8.0.x below 8.0.16, and 8.1.x below 8.1.3, when using filter functions with FILTER_VALIDATE_FLOAT filter and min/max limits, if the filter fails, there is a possibility to trigger use of allocated memory after free, which can result it crashes, and potentially in overwrite of other memory chunks and RCE. This issue affects: code that uses FILTER_VALIDATE_FLOAT with min/max limits.
Max CVSS
9.8
EPSS Score
0.28%
Published
2022-02-27
Updated
2022-10-07
In PHP versions 7.3.x up to and including 7.3.31, 7.4.x below 7.4.25 and 8.0.x below 8.0.12, when running PHP FPM SAPI with main FPM daemon process running as root and child worker processes running as lower-privileged users, it is possible for the child processes to access memory shared with the main process and write to it, modifying it in a way that would cause the root process to conduct invalid memory reads and writes, which can be used to escalate privileges from local unprivileged user to the root user.
Max CVSS
7.8
EPSS Score
0.15%
Published
2021-10-25
Updated
2022-10-29
In PHP versions 7.3.x below 7.3.27, 7.4.x below 7.4.15 and 8.0.x below 8.0.2, when using SOAP extension to connect to a SOAP server, a malicious SOAP server could return malformed XML data as a response that would cause PHP to access a null pointer and thus cause a crash.
Max CVSS
7.5
EPSS Score
1.23%
Published
2021-02-15
Updated
2021-12-10

CVE-2020-36193

Known exploited
Tar.php in Archive_Tar through 1.4.11 allows write operations with Directory Traversal due to inadequate checking of symbolic links, a related issue to CVE-2020-28948.
Max CVSS
7.5
EPSS Score
92.37%
Published
2021-01-18
Updated
2022-01-01
CISA KEV Added
2022-08-25

CVE-2020-28949

Known exploited
Public exploit
Archive_Tar through 1.4.10 has :// filename sanitization only to address phar attacks, and thus any other stream-wrapper attack (such as file:// to overwrite files) can still succeed.
Max CVSS
7.8
EPSS Score
96.58%
Published
2020-11-19
Updated
2022-01-06
CISA KEV Added
2022-08-25
Archive_Tar through 1.4.10 allows an unserialization attack because phar: is blocked but PHAR: is not blocked.
Max CVSS
7.8
EPSS Score
6.78%
Published
2020-11-19
Updated
2022-03-30
In PHP versions 7.2.x below 7.2.30, 7.3.x below 7.3.17 and 7.4.x below 7.4.5, if PHP is compiled with EBCDIC support (uncommon), urldecode() function can be made to access locations past the allocated memory, due to erroneously using signed numbers as array indexes.
Max CVSS
7.5
EPSS Score
1.25%
Published
2020-04-27
Updated
2022-05-16
In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using mb_strtolower() function with UTF-32LE encoding, certain invalid strings could cause PHP to overwrite stack-allocated buffer. This could lead to memory corruption, crashes and potentially code execution.
Max CVSS
8.8
EPSS Score
0.50%
Published
2020-04-01
Updated
2021-12-02
In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when using file upload functionality, if upload progress tracking is enabled, but session.upload_progress.cleanup is set to 0 (disabled), and the file upload fails, the upload procedure would try to clean up data that does not exist and encounter null pointer dereference, which would likely lead to a crash.
Max CVSS
7.5
EPSS Score
0.49%
Published
2020-02-27
Updated
2022-01-01
In PHP versions 7.3.x below 7.3.15 and 7.4.x below 7.4.3, while extracting PHAR files on Windows using phar extension, certain content inside PHAR file could lead to one-byte read past the allocated buffer. This could potentially lead to information disclosure or crash.
Max CVSS
9.1
EPSS Score
0.36%
Published
2020-02-27
Updated
2022-05-16
When using certain mbstring functions to convert multibyte encodings, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause function mbfl_filt_conv_big5_wchar to read past the allocated buffer. This may lead to information disclosure or crash.
Max CVSS
9.1
EPSS Score
0.40%
Published
2020-02-10
Updated
2022-07-01
395 vulnerabilities found
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