CVE-2025-4803 json
Glossary by WPPedia <= 1.3.0 - Authenticated (Administrator+) PHP Object Injection
published last yr. modified 4mo ago also EUVD-2025-16073
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
Summary
The Glossary by WPPedia – Best Glossary plugin for WordPress plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.3.0 via deserialization of untrusted input from the 'posttypes' parameter. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
Is CVE-2025-4803 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- last yr.
Exploit prediction
0.74% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
Affected products
- steinrein Glossary by WPPedia – Best Glossary plugin for WordPress
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/53fb54bc-6eaa-4e99-a41c-e59a9bae81e5?source=cve
- plugins.trac.wordpress.org /browser/wppedia/tags/1.3.0/core/classes/class-options.php#L396
- plugins.trac.wordpress.org /browser/wppedia/tags/1.3.0/core/classes/traits/trait-sanitizes-data.php#L64
- github.com /bfiessinger/wppedia/blob/1d0b8568349c9c9479372f845a812eb2aa4b3d09/core/classes/traits/trait-sanitizes-data.ph
Sources
- CVE List CVE-2025-4803
- NVD CVE-2025-4803
Fencer Intel 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.