XSS in Pimcore Admin Classic Bundle
CVE-2025-30166
Pimcore's Admin Classic Bundle provides a Backend UI for Pimcore. An HTML injection issue allows users with access to the email sending functionality to inject arbitrary HTML code into emails sent via the admin interface, potentially leading to session cookie theft and the alteration of page content. The vulnerability was discovered in the /admin/email/send-test-email endpoint using the POST method. The vulnerable parameter is content, which permits the injection of arbitrary HTML code during the email sending process. While JavaScript code injection is blocked through filtering, HTML code injection remains possible. This vulnerability is fixed in 1.7.6.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.002 (16.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Pimcore Admin_classic_bundle
- Pimcore Admin-ui-classic-bundle — versions < 1.7.6
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-30166?
- CVE-2025-30166 is a medium-severity vulnerability in Pimcore Admin Classic Bundle, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2025-04-08.
- How severe is CVE-2025-30166?
- Medium severity. CVSS v3 base score is 4.8 out of 10.
- Is CVE-2025-30166 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.