Cyber Resilience

CVE-2024-21501

MediumPublic PoC

Published: 24 February 2024

Published
24 February 2024
Modified
25 April 2025
KEV Added
Patch
CVSS Score v3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS Score 0.0181 83.2th percentile
Risk Priority 12 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-21501 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor (CWE-200) vulnerability in Fedoraproject Fedora. Its CVSS base score is 5.3 (Medium).

Operationally, ranked in the top 16.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Versions of the package sanitize-html before 2.12.1 are vulnerable to Information Exposure when used on the backend and with the style attribute allowed, allowing enumeration of files in the system (including project dependencies). An attacker could exploit this vulnerability to…

more

gather details about the file system structure and dependencies of the targeted server.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

apostrophecms
sanitize-html
≤ 2.12.1
fedoraproject
fedora
39, 40

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.

addresses: CWE-200 CWE-538

Review and removal of nonpublic information from publicly accessible systems directly prevents exposure of sensitive data to unauthorized actors.

addresses: CWE-200 CWE-538

Monitoring directly detects unauthorized disclosure of sensitive information, enabling response to exposures.

addresses: CWE-200 CWE-538

A data action map identifies locations where sensitive information may be exposed to unauthorized actors during processing or transfer.

addresses: CWE-200 CWE-538

The control's identification, isolation, alerting, and eradication steps directly limit the impact and exploitation window of unauthorized sensitive information exposure.

addresses: CWE-200 CWE-538

Categorization identifies sensitive data so that confidentiality protections commensurate with impact level are selected and documented.

addresses: CWE-200 CWE-538

The assessment process surfaces design decisions that could expose sensitive (including PII) data to unauthorized actors, prompting controls that reduce such exposure.

addresses: CWE-200 CWE-538

Tainting directly detects exfiltration resulting from exposure of sensitive information to unauthorized actors.

addresses: CWE-200 CWE-538

OPSEC controls directly protect supply chain information from unauthorized observation or disclosure.

References