CVE-2026-120578 json
AI Alt Text Generator <= 2.7.0 - Missing Authorization to Unauthenticated Arbitrary Attachment Modification via 'post_id' Parameter
published 6d ago modified 6d ago also EUVD-2026-115673
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 17%
- public exploits
- 0
- none known
Summary
The AI Alt Text Generator plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.7.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to modify the alt text, and optionally the title, caption, and description of arbitrary attachments owned by other users. Exploiting this vulnerability requires a Contributor-level account to retrieve the nonce from the page source of post.php, post-new.php, or upload.php; additionally, overwriting post_title, post_excerpt, and post_content requires the plugin's set_title, set_caption, or set_description options to be enabled.
Is CVE-2026-120578 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
- yes
- Technical impact
- partial
- Assessed
- 6d ago
Exploit prediction
0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
Affected products
- migkapa AI Alt Text Generator
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/fa4741fa-0871-4f23-b164-94f5e94f5712?source=cve
- plugins.trac.wordpress.org /browser/ai-alt-text-generator/tags/2.7.0/admin/class-ai-alt-text-generator-admin.php#L585
- plugins.trac.wordpress.org /browser/ai-alt-text-generator/tags/2.7.0/includes/class-ai-alt-text-generator.php#L175
- plugins.trac.wordpress.org /browser/ai-alt-text-generator/tags/2.7.0/includes/functions.php#L249
- plugins.trac.wordpress.org /changeset?reponame=&old=3767321%40ai-alt-text-generator&new=3767321%40ai-alt-text-generator
Sources
- CVE List CVE-2026-120578
- NVD CVE-2026-120578
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.