Cyber Resilience

CVE-2021-39501

MediumPublic PoC

Published: 07 September 2021

Published
07 September 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS Score 0.3191 96.9th percentile
Risk Priority 31 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-39501 is a medium-severity Open Redirect (CWE-601) vulnerability in Eyoucms Eyoucms. Its CVSS base score is 6.1 (Medium).

Operationally, ranked in the top 3.1% 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

EyouCMS 1.5.4 is vulnerable to Open Redirect. An attacker can redirect a user to a malicious url via the Logout function.

CWE(s)
CWE-601

Related Threats

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

Affected Assets

eyoucms
eyoucms
1.5.4

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.

AT-2 Literacy Training and Awareness
addresses: CWE-601

Security awareness includes verifying URLs and avoiding untrusted redirects that lead to malicious sites.

SI-10 Information Input Validation
addresses: CWE-601

Validates redirect targets and URLs to ensure they conform to allowed destinations.

References