CVE-2026-82867: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in pdfme schemas
Description
A cross-site scripting (XSS) vulnerability exists in the Select schema plugin of @pdfme/schemas versions before 5.5.9. The vulnerability arises from improper sanitization of option values before inserting them into HTML using innerHTML, allowing attackers to execute arbitrary JavaScript in users' browsers via crafted templates.
CVSS v4.0
Score 5.3medium
Affected software
pdfme
schemas
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
@pdfme/schemas versions prior to 5.5.9 contain an XSS vulnerability in the Select schema plugin. This occurs because option values are not properly sanitized before being interpolated into HTML via innerHTML. An attacker can exploit this by supplying malicious templates with crafted option values containing HTML and JavaScript, leading to arbitrary code execution in the context of the user's browser.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary JavaScript code in the victim's browser, potentially leading to session hijacking, data theft, or other malicious actions within the user's browser context. The vulnerability requires user interaction (UI:P) and has low to limited scope and impact as per the CVSS vector.
Mitigation Recommendations
Upgrade to @pdfme/schemas version 5.5.9 or later where this vulnerability is fixed. Patch status is confirmed by the version range indicating affected versions are prior to 5.5.9. No vendor advisory content was provided, so check the vendor's official resources for the latest remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-31T08:37:53.170Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a954466acd9273b49d7ddd0
Added to database: 08/31/2026, 09:07:50 UTC
Last enriched: 10/09/2026, 21:24:31 UTC
Last updated: 10/13/2026, 18:57:41 UTC
Views: 49
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