CVE-2026-18063: Job Postings <= 2.8.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'position_button' Parameter

Severity: medium (CVSS 6.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-15 · updated 2026-09-15
Weakness: CWE-79

Description

The Job Postings plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'position_button' parameter in all versions up to, and including, 2.8.1 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.

Affected products

blueglassch Job Postings: through 2.8.1

References

https://plugins.trac.wordpress.org/browser/job-postings/tags/2.8.1/include/class-job-add-edit.php#L1188
https://plugins.trac.wordpress.org/browser/job-postings/tags/2.8.1/include/class-job-add-edit.php#L544
https://www.wordfence.com/threat-intel/vulnerabilities/id/2c7868c4-d9ea-4f8f-a4ba-a9e7ca43ab1f?source=cve

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