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Fencer Vulns
medium 5.0

CVE-2023-33195 json

Craft CMS XSS in RSS widget feed

published 2023-05-26 3 y ago modified 2026-09-10 1 mo ago also GHSA-qpgm-gjgf-8c2x , EUVD-2023-1613

cvss
5.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

Craft is a CMS for creating custom digital experiences on the web. A malformed RSS feed can deliver an XSS payload. This issue was patched in version 4.4.6.

Patch / fix

  • packagist craftcms/cms 4.4.6
  • craftcms craft_cms 4.4.6

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
21 mo ago

Exploit prediction

0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/craftcms/cms/security/advisories/GHSA-qpgm-gjgf-8c2x referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 5.0 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
GitHub 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
packagist craftcms/cms
>=4.3.0, <4.4.6
4.4.6

Affected products

  • craftcms cms

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

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.