Vulnerability · Published Nov 20, 2023 · Assigned by GitHub_M

CVE-2023-48300Embed Privacy missing escaping for show_all attribute in opt-out shortcode

Medium 6.3

In plain English

A medium-severity cross-site scripting in embed-privacy from epiphyt. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)0.5%top 55.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
epiphyt	embed-privacy	< 1.8.1

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

References

https://github.com/epiphyt/embed-privacy/security/advisories/GHSA-3wv9-4rvf-w37g x_refsource_CONFIRM
https://github.com/epiphyt/embed-privacy/issues/199 x_refsource_MISC
https://github.com/epiphyt/embed-privacy/commit/f80929992b2a5a66f4f4953cd6f46cc227154a5c x_refsource_MISC
https://d.pr/v/ORuIat x_refsource_MISC