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Fencer Vulns
medium 5.4

CVE-2023-25440 json

Stored Cross Site Scripting (XSS) vulnerability in the add contact function CiviCRM 5.59.alpha1, allows attackers to execute arbitrary code…

published 2023-05-23 3 y ago modified 2026-06-17 4 mo ago also BIT-civicrm-2023-25440 , EUVD-2023-29395

cvss
5.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.5%
EPSS 2.5% chance of exploitation in 30 days, percentile 85%
public exploits
1
Exploit-DB

Summary

Stored Cross Site Scripting (XSS) vulnerability in the add contact function CiviCRM 5.59.alpha1, allows attackers to execute arbitrary code in first/second name field.

Timeline

  1. Published
  2. First public exploit (EDB-51478)

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
21 mo ago

Exploit prediction

2.54% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-51478 CiviCRM 5.59.alpha1 - Stored XSS (Cross-Site Scripting) webapps, 2023-05-23
  • packetstormsecurity.com https://packetstormsecurity.com/files/172470/CiviCRM-5.59.alpha1-Cross-Site-Scripting.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/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
CNA 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
OSV 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
bitnami civicrm
>=5.59-alpha1.0, <=5.59-alpha1.0
 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.