CVE-2025-12118 json
Schema Scalpel <= 1.6.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Post Title in JSON-LD Schema
published 2025-11-01 12 mo ago modified 2026-10-18 21 d ago also EUVD-2025-37416
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 15%
- public exploits
- 0
- none known
Summary
The Schema Scalpel plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the post title in all versions up to, and including, 1.6.1 due to insufficient input sanitization and output escaping when outputting user-supplied data into JSON-LD schema markup. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 12 mo ago
Exploit prediction
0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- kevingillispie Schema Scalpel
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- github.com /kevingillispie/Schema-Scalpel/commit/0a24430ed4f99a3998d032e755cd97a57d4fae29
- wordfence.com /threat-intel/vulnerabilities/id/9289e93c-22ac-4f3f-8a8a-591d9a598713?source=cve
- plugins.trac.wordpress.org /browser/schema-scalpel/tags/1.6.1/public/class-schema-scalpel-public.php#L146
- plugins.trac.wordpress.org /browser/schema-scalpel/tags/1.6.1/public/class-schema-scalpel-public.php#L183
Sources
- CVE List CVE-2025-12118
- NVD CVE-2025-12118
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.