PDF.js Viewer: Cross-site scripting
PDF.js Viewer is affected by cross-site scripting. Exposure depends on how the affected operation is made reachable by the site. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
- Component
- PDF.js Viewer
- Plugin slug
pdf.js-viewer- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Feb 06, 2023
- Weakness
- Not assigned
This CVE was published Feb 06, 2023 and is one of 2 known issues for this plugin.
Update, patch or deactivate.
Update PDF.js Viewer to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The PDF.js Viewer WordPress plugin before 2.1.8 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N