XSS in Epiph Embed Privacy
CVE-2023-48300
The `Embed Privacy` plugin for WordPress that prevents the loading of embedded external content is vulnerable to Stored Cross-Site Scripting via `embed_privacy_opt_out` shortcode in versions up to, and including, 1.8.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Version 1.8.1 contains a patch for this issue.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.005 (41.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Epiph Embed_privacy
- Epiphyt Embed-privacy — versions < 1.8.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Exploit, x_refsource_MISC)
Frequently asked questions
- What is CVE-2023-48300?
- CVE-2023-48300 is a medium-severity vulnerability in Epiph Embed Privacy, classified under Cross-site Scripting. CVSS score: 6.3/10. Published 2023-11-20.
- How severe is CVE-2023-48300?
- Medium severity. CVSS v3 base score is 6.3 out of 10.
- Is CVE-2023-48300 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.