CVE-2025-54940
An HTML injection vulnerability exists in WordPress plugin "Advanced Custom Fields" prior to 6.4...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Active
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2025-54940- CVSS 4.0
- 4.6 Medium
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 - CVSS 3.0
- 3.4 Low
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N - Weakness
- CWE-94
- Updated
- 2026-11-02
EUVDEUVD-2025-23979
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.
- Record
EUVD-2025-23979- CVSS 4.0
- 4.6 Medium
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-ww7q-fq8q-pm4x
An HTML injection vulnerability exists in WordPress plugin "Advanced Custom Fields" prior to 6.4...
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.
- Record
GHSA-ww7q-fq8q-pm4x- CVSS 4.0
- 4.6 Medium
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 - CVSS 3.0
- 3.4 Low
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N - Weakness
- CWE-94
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2025-54940- CVSS 4.0
- 4.6 Medium
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 - CVSS 3.0
- 3.4 Low
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N - Weakness
- CWE-94
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-54940 is a medium vulnerability (CVSS 4.6) in Tassos.gr Advanced Custom Fields, published August 8, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.22%, the 12th percentile. No source names a fixed version.