Bookshelf <= 2.0.4 - Authenticated Stored Cross-Site Scripting (XSS)
Priority LOW 25CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
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
Why it matters now
EPSS 0.0062 49th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Bookshelf | 2.0.4 – 2.0.4 | — | No fix listed | CNA |
- Bookshelf VendorUnknown Affected 2.0.4 – 2.0.4 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:bookshelf_project:bookshelf:*:*:*:*:*:wordpress:*:* | up to 2.0.4 | Vulnerable | Bookshelf Project |
- cpe:2.3:a:bookshelf_project:bookshelf:*:*:*:*:*:wordpress:*:* Versions up to 2.0.4 Vulnerable ·Bookshelf Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-24478
- 2026-10-03 Alias added: GHSA-7hv3-9hqr-c553
References
Sources
- CVE-2021-24478 · CVE Program
- CVE-2021-24478 · NVD
- FIRST EPSS
- GHSA-7hv3-9hqr-c553 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences