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Advisories

Vvveb through 1.0.8.6 Stored XSS via sanitizeHTML() Blacklist Bypass

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Severity
medium
Date
Affecting

  • Vvveb <= 1.0.8.6

CWE
  • CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS
5.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Credit
vq4s, fgetss
Description
Vvveb through 1.0.8.6 contains a stored cross-site scripting vulnerability that allows low-privilege author or vendor users to inject script by bypassing the regex blacklist in sanitizeHTML(). Attackers can save post or product content with unclosed event-handler tags or javascript&colon; entities to execute script for anonymous visitors and admins, enabling session or CSRF-token theft.

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