EUVD-2026-68310
GHSA-hm5g-8j63-j96q
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Reflected XSS requires victim interaction (UI:R), changes browser execution context (S:C), and enables session theft (C:L) and page manipulation (I:L) with no server availability impact.
Primary rating from Vendor (VulDB).
CVSS VectorVendor: VulDB
Lifecycle Timeline
4DescriptionCVE.org
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.
AnalysisAI
Reflected cross-site scripting in SeaCMS up to version 13.6 allows remote unauthenticated attackers to inject arbitrary JavaScript into a victim's browser session via the errtxt parameter of /err.php. Exploitation requires social engineering to deliver a crafted URL to a target user; no privileges or prior authentication are needed. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that a victim user click or otherwise follow a crafted URL containing a malicious `errtxt` parameter pointing to the target SeaCMS installation's `/err.php` endpoint. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score of 5.3 (AV:N/AC:L/AT:N/PR:N/UI:P) correctly captures a low-complexity, network-reachable attack requiring passive user interaction. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch has been identified at time of analysis; the fix version is not confirmed in the provided input data. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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