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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (42.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Epiph Embed Privacy
- Epiphyt Embed-Privacy — versions < 1.8.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/epiphyt/embed-privacy/security/advisories/GHSA-3wv9-4rvf-w37g (Vendor Advisory)
- github.com/epiphyt/embed-privacy/issues/199 (Issue Tracking)
- github.com/epiphyt/embed-privacy/commit/f80929992b2a5a66f4f4953cd6f46cc227154a5c (Patch)
- d.pr/v/ORuIat (Exploit)
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.