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Fencer Vulns
medium 4.7

CVE-2024-26481 json

Kirby vulnerable to self cross-site scripting (self-XSS) in the URL field

published 2024-02-22 2 y ago modified 2026-07-08 4 mo ago also GHSA-57f2-8p89-66x6 , EUVD-2024-0519

cvss
4.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 35%
public exploits
0
none known

Summary

Kirby CMS v4.1.0 was discovered to contain a reflected self-XSS vulnerability via the URL parameter.

Patch / fix

  • packagist getkirby/cms 3.6.6.5, 3.7.5.4, 3.8.4.3, 3.9.8.1, 3.10.0.1, 4.1.1
  • getkirby kirby 3.6.6.5, 3.7.5.4, 3.8.4.3, 3.9.8.1

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.40% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • shrouded-trowel-50c.notion.site https://shrouded-trowel-50c.notion.site/Kirby-CMS-4-1-0-Self-Cross-Site-Scripting-d877183d20af49f8a8f58554bc06d51c?pvs=4 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 4.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
CNA 3.1 4.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
GitHub 3.1 4.2 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
packagist getkirby/cms
<3.6.6.5
>=3.7.0, <3.7.5.4
>=3.8.0, <3.8.4.3
>=3.9.0, <3.9.8.1
>=3.10.0, <3.10.0.1
>=4.0.0, <4.1.1
3.6.6.5
3.7.5.4
3.8.4.3
3.9.8.1
3.10.0.1
4.1.1

Affected products

  • getkirby kirby

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.