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CVE-2026-7429

MEDIUM

4.6

Description

SSCMS v7.4.0 contains a reflected cross-site scripting vulnerability in the STL processing endpoint that allows attackers to execute arbitrary JavaScript by crafting malicious STL template payloads that are decrypted and returned without proper sanitization. Attackers can exploit improper output encoding in the /api/stl/actions/dynamic endpoint to inject executable JavaScript into JSON responses, leading to session hijacking, phishing attacks, and unauthorized actions performed on behalf of users.

Details CVE

Score CVSS v3.14.6

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisLOW

Interaction utilisateurREQUIRED

Publie4/30/2026

Derniere modification5/1/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-79

References

https://github.com/siteserver/cms(disclosure@vulncheck.com)

https://github.com/siteserver/cms/issues/3892(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/sscms-reflected-cross-site-scripting-via-stl-processing(disclosure@vulncheck.com)

https://github.com/siteserver/cms/issues/3892(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlations IOC

Aucune correlation enregistree

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