Sigma rule: WordPress Wp2shell Webshell Plugin Access

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-8f027bf140c6, updated 2026-07-19T00:00:00.000Z.

Rule

Title
WordPress Wp2shell Webshell Plugin Access
Status
experimental
Level
critical
Author
Swachchhanda Shrawan Poudel (Nextron Systems)
Date
2026-07-19
File
rules-emerging-threats/2026/Exploits/CVE-2026-63030/web_exploit_cve_2026_63030_webshell_plugin_access.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects post-exploitation access to the wp2shell webshell plugin dropped after successful
exploitation of CVE-2026-63030 and CVE-2026-60137. After the pre-auth SQLi-to-admin bridge is established,
the attacker can upload a malicious plugin (wp2shell) to the target WordPress instance.
At this phase, the attacker accesses the webshell for command execution and persistence.

Log source

category
webserver

Detection

selection:
    cs-uri-stem|contains: '/wp-content/plugins/wp2shell_'
filter_optional_null_query:
    cs-uri-query: null
condition: selection and not 1 of filter_optional_*

False positives (as the rule lists them)

  • Unlikely

Tags

  • attack.execution
  • attack.persistence
  • attack.t1505.003
  • cve.2026-63030
  • cve.2026-60137
  • detection.emerging-threats

CVEs this rule names

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2026/Exploits/CVE-2026-63030/web_exploit_cve_2026_63030_webshell_plugin_access.yml

Sources and licences

  • SigmaHQ

    "WordPress Wp2shell Webshell Plugin Access" by Swachchhanda Shrawan Poudel (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2026/Exploits/CVE-2026-63030/web_exploit_cve_2026_63030_webshell_plugin_access.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: WordPress Wp2shell Webshell Plugin Access",
entity page, dataset version ref-8f027bf140c6, updated 2026-07-19T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/c9e6f412-3d50-4f7e-bf94-5b6c7d8e9f0a (accessed 2026-11-03).
Underlying source: SigmaHQ rule c9e6f412-3d50-4f7e-bf94-5b6c7d8e9f0a, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.