CVE-2020-11546
Medium PUBLISHEDSuperWebMailer 7.21.0.01526 is susceptible to a remote code execution vulnerability in the Language parameter of mailingupgrade.php. An...
Not yet in CISA KEV
Recommended Action
Review exposure in your environment and monitor for exploitation signals before broader rollout.
At a Glance
SuperWebMailer 7.21.0.01526 is susceptible to a remote code execution vulnerability in the Language parameter of mailingupgrade.php. An unauthenticated remote attacker can exploit this behavior to execute arbitrary PHP code via Code Injection.
- Published
- Jul 14, 2020
- First Seen
- Jun 08, 2025
- CVSS
- 9.8 Critical
- EPSS
- —
Recommended Actions
- Review exposure in your environment and monitor for exploitation signals before broader rollout.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
| Source | Added |
|---|---|
| The Shadowserver (via CIRCL) First | 2025-06-08 00:00 UTC |
Detection Context
Request patterns and scanner artifacts observed for this CVE. Operational detection logic guidance is coming soon.
Scanner Artifacts
Nuclei and Metasploit references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-11546.yaml | Apr 25, 2025 |
CVSS Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:P/I:P/A:P
Exploitation Status
Proof of concept available
Recorded 2021-12-27 14:18:31 UTC · GitHub
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-11546.yaml | Apr 25, 2025 |
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
github · Created 2021-12-27 14:18:31 UTC · 1 stars
SuperWebMailer RCE
nuclei · Created Unknown
Timeline
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Added to KEVIntel
-
Detected by Nuclei
-
Proof of Concept Exploit Available
-
CVE Published to Public
-
CVE ID Reserved
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v1/pro/kevs/CVE-2020-11546
{
"cve_id": "CVE-2020-11546",
"title": "SuperWebMailer 7.21.0.01526 is susceptible to a remote code execution vulnera...",
"affected_vendor": "SuperWebMailer",
"affected_product": "SuperWebMailer",
"confidence": "Medium",
"cvss_score": 9.8,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": false,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}