CVE-2026-126369 json
Vvveb through 1.0.8.6 Stored XSS via sanitizeHTML() Blacklist Bypass
published 17d ago modified 2d ago also EUVD-2026-125196 , GHSA-prqj-4768-vcmq
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository givanz/Vvveb. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 17%
- public exploits
- 0
- none known
Summary
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: entities to execute script for anonymous visitors and admins, enabling session or CSRF-token theft.
Is CVE-2026-126369 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-14).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.1 | 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 |
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| CNA | 4.0 | 5.1 | 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/E:X/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 |
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Affected products
- givanz Vvveb
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/givanz/Vvveb/security/advisories/GHSA-prqj-4768-vcmq
vendor-advisory, advisory
-
vulncheck.com
/advisories/vvveb-through-1.0.8.6-stored-xss-via-sanitizehtml-blacklist-bypass
third-party-advisory
Sources
- CVE List CVE-2026-126369
- NVD CVE-2026-126369
- Maintainer advisory GHSA-prqj-4768-vcmq
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of givanz/Vvveb published their own advisory on GitHub. Reviewed sources take precedence over it.