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Fencer Vulns
medium 6.1

CVE-2023-43875 json

Subrion CMS vulnerable to Cross-site Scripting

published 2023-10-19 3 y ago modified 2026-06-17 4 mo ago also GHSA-646r-8fcc-p82r , EUVD-2023-2665

cvss
6.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

Summary

Multiple Cross-Site Scripting (XSS) vulnerabilities in installation of Subrion CMS v.4.2.1 allows a local attacker to execute arbitrary web scripts via a crafted payload injected into the dbhost, dbname, dbuser, adminusername and adminemail.

CISA SSVC

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

Exploit prediction

0.83% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/sromanhu/Subrion-CMS-Reflected-XSS---Installation/blob/main/README.md referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/sromanhu/CVE-2023-43875-Subrion-CMS-Reflected-XSS---Installation/blob/main/README.md 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
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 intelliants/subrion
<=4.2.1
 no fix listed

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.