CVE-2022-26271
Published: 28 March 2022
Summary
CVE-2022-26271 is a high-severity Files or Directories Accessible to External Parties (CWE-552) vulnerability in 74Cms 74Cms. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 5.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
74cmsSE version 3.4.1 contains an arbitrary file read vulnerability in the Download controller at index/controller/Download.php, where the $url parameter is processed without sufficient validation or access controls. The flaw is tracked as CVE-2022-26271 with a CVSS 3.1 score of 7.5 and is associated with CWE-552, allowing external parties to access files that should remain restricted.
Remote attackers require no authentication or user interaction to exploit the issue over the network, enabling them to retrieve arbitrary files from the server and thereby obtain sensitive data with high confidentiality impact while leaving integrity and availability unaffected.
The associated GitHub references document the discovery and reproduction steps but contain no official vendor advisories or patch details.
EPSS scores for the CVE rose from a low baseline to a peak of 0.2369 before settling at the current value of 0.1271, indicating that exploitation interest increased after public disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-30832
Vulnerability details
74cmsSE v3.4.1 was discovered to contain an arbitrary file read vulnerability via the $url parameter at \index\controller\Download.php.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Controls on authorized publication limit files and directories with nonpublic data from becoming accessible to external parties.
Controlling and documenting P2P file sharing prevents files and directories from being made accessible to external parties for unauthorized distribution.
Identifying and documenting file and directory locations allows restriction of access to external parties.
Protecting backup files ensures they are not accessible to external parties or unauthorized spheres.
Sanitizing equipment before off-site maintenance reduces the risk of files or directories containing sensitive data becoming accessible to external parties.
Policy restricts media access to authorized parties only, preventing exposure of resources to external or unauthorized actors.
Media access restrictions prevent files or directories from being accessible to external parties.
Employing and evaluating controls at documented alternate sites makes files and directories less likely to be accessible to external parties through physical or environmental weaknesses.