Vditor allows Cross-site Scripting via an attribute of an `A` element

published 2024-05-03 2 y ago modified 2026-06-17 4 mo ago also GHSA-m5jf-8crm-r65m , EUVD-2024-1682

cvss: 6.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits: 0; none known

Vditor 3.10.3 allows XSS via an attribute of an A element. NOTE: the vendor indicates that a user is supposed to mitigate this via sanitize=true.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-05-09)

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/Vanessa219/vditor/issues/1604 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
npm	vditor	1 listed version	no fix listed

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /Vanessa219/vditor/issues/1604
web, exploit, issue-tracking
github.com /Vanessa219/vditor/blob/b3a14d6e4462b0c17141e1fcc66173264ada64e0/README_en_US.md?plain=1#L310
web, product
nvd.nist.gov /vuln/detail/CVE-2024-34449
advisory
github.com /Vanessa219/vditor
package

Sources

Fencer Vulns 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.

Summary