CVE-2025-54940 json
An HTML injection vulnerability exists in WordPress plugin "Advanced Custom Fields" prior to 6.4.3.
published 2025-08-08 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-23979
- cvss
- 3.4
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 12%
- public exploits
- 0
- none known
Summary
An HTML injection vulnerability exists in WordPress plugin "Advanced Custom Fields" prior to 6.4.3. If this vulnerability is exploited, crafted HTML code may be rendered and page display may be tampered.
Patch / fix
- advancedcustomfields advanced_custom_fields 6.4.3
- wpengine advanced_custom_fields 6.4.3
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 15 mo ago
Exploit prediction
0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 3.4 | CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N |
| CNA | 4.0 | 4.6 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N |
| CNA | 4.0 | 4.6 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- WPEngine, Inc. Advanced Custom Fields
Classification
- Weakness
-
- CWE-94 Improper Control of Generation of Code
- Technology feeds
References
Sources
- CVE List CVE-2025-54940
- NVD CVE-2025-54940
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.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.