EUVD-2026-66168
GHSA-gx46-3fxf-m623
Severity by source
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Network-reachable stored XSS requiring authenticated upload and victim page visit, with scope change to victim browser; no availability impact.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
3DescriptionCVE.org
A Stored XSS vulnerability in the subtitle deletion flow in GazellePW (GazellePosterWall) commit 86c4bedf727691b5a97af42a4864869d18446449 allows remote authenticated users to inject arbitrary JavaScript via a crafted subtitle filename, which is stored during upload and later rendered in /subtitles.php?action=delete.
AnalysisAI
Stored XSS in GazellePW (GazellePosterWall) allows authenticated low-privilege users to inject persistent JavaScript via a crafted subtitle filename, which is stored during upload and rendered unsanitized in the subtitle deletion page. A public exploit writeup (snaacky.com) documents a 1-click chain leveraging this flaw to achieve complete GazellePW database compromise, substantially elevating the practical impact beyond the CVSS 5.4 Medium base score. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must hold a valid authenticated account on the GazellePW instance with permission to upload subtitle files (low privilege, not administrator). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The NVD CVSS 5.4 Medium score reflects meaningful constraints: authenticated access is required (PR:L), and a second user must interact with the deletion page (UI:R). … 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 patched version has been confirmed at time of analysis - NVD references identify the vulnerable lines in a specific commit without pointing to a fix commit or tagged release. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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