The Subscribe To Comments Reloaded plugin for WordPress is vulnerable to unauthorized modification of data due to a
Source GCVE Database
Not known to be exploited · CVSS 6.5 Medium.
Data as of 27 Oct 2026, 01:33 UTC
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 5 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| wpkubeSubscribe To Comments Reloaded | Affected
| Fixed in– |
AI-suggested
Until a fix is available, users should consider disabling the plugin or restricting access to public post pages to mitigate exposure.
Description
The Subscribe To Comments Reloaded WordPress plugin has a vulnerability in all versions up to and including 240119 that allows unauthorized modification of comment subscription data. This is due to a leaked secret key and the use of a weak hash generation algorithm, enabling unauthenticated attackers to extract the global key from any public post page and forge authorization keys to manage subscription preferences for arbitrary users.
References
- nvd.nist.gov/vuln/detail/CVE-2026-4409 (opens in a new tab)
- plugins.trac.wordpress.org/browser/subscribe-to-comments-reloaded/tags/240119/templates/user.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/subscribe-to-comments-reloaded/tags/240119/utils/stcr_utils.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/subscribe-to-comments-reloaded/tags/240119/wp_subscribe_reloaded.php (opens in a new tab)
- wordfence.com/threat-intel/vulnerabilities/id/91f9235e-f578-475f-92c3-34062d6d1e3d?source=cve (opens in a new tab)