CVE-2023-6561 json
Featured Image from URL (FIFU) <= 4.5.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via featured image alt text
published 2024-01-11 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-58790
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 39%
- public exploits
- 0
- none known
Summary
The Featured Image from URL (FIFU) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the featured image alt text in all versions up to, and including, 4.5.3 due to insufficient input sanitization and output escaping. 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
- fifu featured_image_from_url 4.5.4
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.45% chance of exploitation in the next 30 days, higher than 39% 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 |
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Affected products
- marceljm Featured Image from URL (FIFU)
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
plugins.trac.wordpress.org
/browser/featured-image-from-url/trunk/admin/meta-box.php#L213
patch
-
plugins.trac.wordpress.org
/browser/featured-image-from-url/trunk/admin/category.php#L62
patch
-
plugins.trac.wordpress.org
/changeset?sfp_email=&sfph_mail=&reponame=&new=3009699%40featured-image-from-url%2Ftrunk&old=3003342%40feature
patch
-
wordfence.com
/threat-intel/vulnerabilities/id/d4d5ae93-000e-4001-adfa-c11058032469?source=cve
third-party-advisory
Sources
- CVE List CVE-2023-6561
- NVD CVE-2023-6561
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.