CVE-2026-4078 json
ITERAS <= 1.8.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
published 2026-04-24 6 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-25407
- 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 17%
- public exploits
- 0
- none known
Summary
The ITERAS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple shortcodes (iteras-ordering, iteras-signup, iteras-paywall-login, iteras-selfservice) in all versions up to and including 1.8.2. This is due to insufficient input sanitization and output escaping in the combine_attributes() function. The function directly concatenates shortcode attribute values into JavaScript code within <script> tags using double-quoted string interpolation (line 489: '"'.$key.'": "'.$value.'"') without any escaping. An attacker can break out of the JavaScript string context by including a double-quote character in a shortcode attribute value and inject arbitrary JavaScript. 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
- 6 mo ago
Exploit prediction
0.26% chance of exploitation in the next 30 days, higher than 17% 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
- iteras ITERAS
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/bd034f43-370c-4ad9-ad02-4cae0f48d781?source=cve
- plugins.trac.wordpress.org /browser/iteras/trunk/public/iteras-public.php#L489
- plugins.trac.wordpress.org /browser/iteras/tags/1.8.2/public/iteras-public.php#L489
- plugins.trac.wordpress.org /browser/iteras/trunk/public/iteras-public.php#L519
- plugins.trac.wordpress.org /browser/iteras/tags/1.8.2/public/iteras-public.php#L519
- plugins.trac.wordpress.org /browser/iteras/trunk/public/iteras-public.php#L511
- plugins.trac.wordpress.org /browser/iteras/tags/1.8.2/public/iteras-public.php#L511
- plugins.trac.wordpress.org /browser/iteras/trunk/public/iteras-public.php#L527
- plugins.trac.wordpress.org /browser/iteras/tags/1.8.2/public/iteras-public.php#L527
- plugins.trac.wordpress.org /browser/iteras/trunk/public/iteras-public.php#L561
- plugins.trac.wordpress.org /browser/iteras/tags/1.8.2/public/iteras-public.php#L561
- plugins.trac.wordpress.org /browser/iteras/trunk/public/iteras-public.php#L551
- plugins.trac.wordpress.org /browser/iteras/tags/1.8.2/public/iteras-public.php#L551
- plugins.trac.wordpress.org /changeset?sfp_email=&sfph_mail=&reponame=&old=3507724%40iteras&new=3507724%40iteras&sfp_email=&sfph_mail=
Sources
- CVE List CVE-2026-4078
- NVD CVE-2026-4078
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.