CVE-2026-52520

MEDIUMCVSS 5.4/10EPSS 0.20%

Last modified

CVE-2026-52520 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Emlog CMS <= 2.6.14 contains a stored cross-site scripting (XSS) vulnerability in the article publishing module (/admin/article.php). A remote authenticated attacker can inject arbitrary JavaScript code via the article content. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

Description

Emlog CMS <= 2.6.14 contains a stored cross-site scripting (XSS) vulnerability in the article publishing module (/admin/article.php). A remote authenticated attacker can inject arbitrary JavaScript code via the article content. When an administrator reviews or previews the submitted article in the backend, the malicious script executes in the admin's browser session, allowing the attacker to perform administrative actions such as creating a backdoor administrator account.

Metrics

CVSS 3.1
5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability
0.20%

10.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
n/a

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-52520?
Emlog CMS <= 2.6.14 contains a stored cross-site scripting (XSS) vulnerability in the article publishing module (/admin/article.php). A remote authenticated attacker can inject arbitrary JavaScript code via the article content. When an administrator reviews or previews the submitted article in the backend, the malicious script executes in the admin's browser session, allowing the attacker to perform administrative actions such as creating a backdoor administrator account.
How severe is CVE-2026-52520?
CVE-2026-52520 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.
How do I fix CVE-2026-52520?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST