CVE-2026-1826 json
OpenPOS Lite <= 3.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
published 2026-02-11 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-5959
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 20%
- public exploits
- 0
- none known
Summary
The OpenPOS Lite – Point of Sale for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'width' parameter of the order_qrcode shortcode in all versions up to, and including, 3.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 8 mo ago
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- openpos OpenPOS Lite – Point of Sale for WooCommerce
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/e3bb88e9-e410-4ff7-b342-72c7b375dff1?source=cve
- plugins.trac.wordpress.org /browser/wpos-lite-version/trunk/includes/admin/Admin.php#L3161
- plugins.trac.wordpress.org /browser/wpos-lite-version/tags/3.0/includes/admin/Admin.php#L3161
- plugins.trac.wordpress.org /changeset/3456299/
Sources
- CVE List CVE-2026-1826
- NVD CVE-2026-1826
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.