CVE-2026-3600 json
Investi <= 1.0.26 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'maximum-num-years' Shortcode Attribute
published 2026-04-08 7 mo ago modified 2026-07-24 3 mo ago also EUVD-2026-20041
- cvss
- 6.4
- 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 19%
- public exploits
- 0
- none known
Summary
The Investi plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'investi-announcements-accordion' shortcode's 'maximum-num-years' attribute in all versions up to, and including, 1.0.26. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. Specifically, the 'maximum-num-years' attribute value is read directly from shortcode attributes and interpolated into a double-quoted HTML attribute without any escaping (no esc_attr(), htmlspecialchars(), or similar). 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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.27% chance of exploitation in the next 30 days, higher than 19% 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
- investi Investi
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/51aa0d86-e623-46d1-9d37-a36b4825c071?source=cve
- plugins.trac.wordpress.org /browser/investi/trunk/includes/widgets.php#L14
- plugins.trac.wordpress.org /browser/investi/tags/1.0.22/includes/widgets.php#L14
- plugins.trac.wordpress.org /browser/investi/trunk/includes/widgets.php#L7
- plugins.trac.wordpress.org /browser/investi/tags/1.0.22/includes/widgets.php#L7
- plugins.trac.wordpress.org /changeset/3486937/
Sources
- CVE List CVE-2026-3600
- NVD CVE-2026-3600
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.