CVE-2023-5741: POWR <= 2.1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-11-13 · updated 2026-06-17
Weakness: CWE-79

Description

The POWR plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'powr-powr-pack' shortcode in all versions up to, and including, 2.1.0 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.

Affected products

Powr: through 2.1.0

References

https://plugins.trac.wordpress.org/browser/powr-pack/trunk/src/pack.php?rev=2821707#L198
https://plugins.trac.wordpress.org/browser/powr-pack/trunk/src/pack.php?rev=2821707#L201
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3006053%40powr-pack&new=3006053%40powr-pack&sfp_email=&sfph_mail=
https://www.wordfence.com/threat-intel/vulnerabilities/id/c2967eae-82bb-4556-a21a-c5bb6b905c62?source=cve
https://plugins.trac.wordpress.org/browser/powr-pack/trunk/src/pack.php?rev=2821707#L198
https://plugins.trac.wordpress.org/browser/powr-pack/trunk/src/pack.php?rev=2821707#L201
https://www.wordfence.com/threat-intel/vulnerabilities/id/c2967eae-82bb-4556-a21a-c5bb6b905c62?source=cve

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