What’s Vulnerable › Vulnerabilities

CVE-2026-82601: SeaCMS err.php cross site scripting

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-31 · updated 2026-08-31
• Weakness: CWE-79

Description

A weakness has been identified in SeaCMS up to 13.6. This affects an unknown part of the file /err.php. Executing a manipulation of the argument errtxt can lead to cross site scripting. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.

Affected products

• SeaCMS: 13.0, 13.1, 13.2, 13.3, 13.4, 13.5 (+1)

References

• https://github.com/T-Chachamaru/seacms-13.6-security-advisories/blob/a084a3e573240d54860153321df271280daec262/c-007-errtxt-reflected-xss.md
• https://vuldb.com/cve/CVE-2026-82601
• https://vuldb.com/submit/892786
• https://vuldb.com/vuln/397103
• https://vuldb.com/vuln/397103/cti

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