CVE-2021-24478: Bookshelf <= 2.0.4 - Authenticated Stored Cross-Site Scripting (XSS)

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: yes
Published: 2021-08-02 · updated 2026-06-17
Weakness: CWE-79

Description

The Bookshelf WordPress plugin through 2.0.4 does not sanitise or escape its "Paypal email address" setting before outputting it in the page, leading to an authenticated Stored Cross-Site Scripting issue

Affected products

Bookshelf: through 2.0.4

References

https://wpscan.com/vulnerability/c73818e5-0734-46c9-9703-d211b4f58664
https://wpscan.com/vulnerability/c73818e5-0734-46c9-9703-d211b4f58664

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