CVE-2026-3129: falha de média gravidade em litespeedtech LiteSpeed Cache
LiteSpeed Cache <= 7.7 - Authenticated (Author+) Stored Cross-Site Scripting via img Tag Attributes
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13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 6.4epss 0.3%
The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via crafted `<img>` tag attributes in all versions up to, and including, 7.7. This is due to a flawed regular expression that is used to strip `width` and `height` attributes from images when the "Lazy Load Images" and "Add Missing Sizes" features are enabled. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that execute whenever a user accesses an injected page.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Produtos afetados
litespeedtech · LiteSpeed CacheCVEs relacionadas — litespeedtech LiteSpeed Cache
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Referências
https://blog.litespeedtech.com/2026/08/27/security-update-for-lscwp-cve-2026-3129/https://plugins.trac.wordpress.org/browser/litespeed-cache/trunk/src/media.cls.php#L761https://plugins.trac.wordpress.org/changeset/3473912/https://www.wordfence.com/threat-intel/vulnerabilities/id/c107674d-173f-49cf-b329-e7bffaee841d?source=cve