CVE-2026-4072 json
WordPress PayPal Donation <= 1.01 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'amount' Shortcode Attribute
published 2026-03-21 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-14177
- 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 10%
- public exploits
- 0
- none known
Summary
The WordPress PayPal Donation plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'donate' shortcode in all versions up to, and including, 1.01. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes such as 'amount', 'email', 'title', 'return_url', 'cancel_url', 'ccode', and 'image'. The wordpress_paypal_donation_create() function uses extract(shortcode_atts(...)) to process shortcode attributes and then directly interpolates these values into HTML output within single-quoted attribute values without any 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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.21% chance of exploitation in the next 30 days, higher than 10% 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
- tstachl WordPress PayPal Donation
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/99a8b48b-2967-4179-a0eb-626bbe273f03?source=cve
- plugins.trac.wordpress.org /browser/wordpress-paypal-donation/trunk/wp-paypal-donation.php#L271
- plugins.trac.wordpress.org /browser/wordpress-paypal-donation/tags/1.01/wp-paypal-donation.php#L271
- plugins.trac.wordpress.org /browser/wordpress-paypal-donation/trunk/wp-paypal-donation.php#L260
- plugins.trac.wordpress.org /browser/wordpress-paypal-donation/tags/1.01/wp-paypal-donation.php#L260
Sources
- CVE List CVE-2026-4072
- NVD CVE-2026-4072
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.