What’s Vulnerable › Vulnerabilities

CVE-2026-1877: Auto Post Scheduler <= 1.84 - Cross-Site Request Forgery to Stored Cross-Site Scripting via aps_options_page

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-31 · updated 2026-06-17
• Weakness: CWE-79

Description

The Auto Post Scheduler plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.84. This is due to missing nonce validation on the 'aps_options_page' function. This makes it possible for unauthenticated attackers to update settings and inject malicious web scripts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Affected products

• johnh10 Auto Post Scheduler: through 1.84

References

• https://plugins.trac.wordpress.org/browser/auto-post-scheduler/tags/1.84/auto-post-scheduler.php#L200
• https://plugins.trac.wordpress.org/browser/auto-post-scheduler/tags/1.84/auto-post-scheduler.php#L962
• https://www.wordfence.com/threat-intel/vulnerabilities/id/bd387fe3-ffc5-4981-93d7-2b0b14cc11d5?source=cve

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