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Fencer Vulns
medium 6.1

CVE-2023-23927 json

Craft CMS stored cross-site scripting vulnerability

published 2023-03-03 3 y ago modified 2026-09-10 1 mo ago also GHSA-qcrj-6ffc-v7hq , EUVD-2023-1079

cvss
6.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
0
none known

Summary

Craft is a platform for creating digital experiences. When you insert a payload inside a label name or instruction of an entry type, an cross-site scripting (XSS) happens in the quick post widget on the admin dashboard. This issue has been fixed in version 4.3.7.

Patch / fix

  • packagist craftcms/cms 3.7.64, 4.3.7
  • craftcms craft_cms 4.3.7

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
20 mo ago

Exploit prediction

0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/craftcms/cms/security/advisories/GHSA-qcrj-6ffc-v7hq referenced PoC, tagged "exploit" by a source, unverified
  • user-images.githubusercontent.com https://user-images.githubusercontent.com/53917092/215604129-d5b75608-5a24-4eb3-906f-55b192310298.mp4 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/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
>=4.0.0-RC1, <4.3.7
>=3.7.24, <3.7.64
4.3.7
3.7.64

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.