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CVE-2026-82601

SeaCMS err.php cross site scripting

MEDIUM
4.3
CVSS Score
Published: August 31, 2026 at 01:15 AM UTC
Updated: August 31, 2026 at 09:06 PM UTC
1 product affected across 1 vendorSeacms

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.4%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/397103
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/397103/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-82601
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/892786
Exploit
Source: cverecord
https://github.com/T-Chachamaru/seacms-13.6-security-advisories/blob/a084a3e573240d54860153321df271280daec262/c-007-errtxt-reflected-xss.md

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79CWE-94

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