CVE-2020-21650
High PUBLISHEDMyucms v2.2.1 contains a remote code execution (RCE) vulnerability in the component \controller\Config.php, which can be exploited via the add()...
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
Myucms v2.2.1 contains a remote code execution (RCE) vulnerability in the component \controller\Config.php, which can be exploited via the add() method.
- CVE Published
- Oct 06, 2021
- Exploitation Reported
- Jun 30, 2025
- CVSS
- 8.8 High
- EPSS
- 3.2%
CVE References
- GitHub — lolipop1234/XXD github.com · CVE Record https://github.com/lolipop1234/XXD/issues/6
- cwe.mitre.org/data/definitions/96.html cwe.mitre.org · CVE Record https://cwe.mitre.org/data/definitions/96.html
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| The Shadowserver First | 2025-06-30 00:00 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:S/C:P/I:P/A:P
Exploitation Status
Exploited in the wild
Recorded 2025-06-30 00:00:00 UTC · The Shadowserver
Weaknesses (CWE)
-
Improper Control of Generation of Code ('Code Injection')
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
00:00 UTC about 1 year ago00:00 UTC · about 1 year ago
Added to KEVIntel KEV Feed
High-confidence, third-party attested exploitation
-
21:33 UTC almost 5 years ago21:33 UTC · almost 5 years ago
CVE published
Vulnerability disclosed publicly
-
00:00 UTC almost 6 years ago00:00 UTC · almost 6 years ago
CVE ID reserved
Identifier reserved by the CNA
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/v2/pro/kevs/CVE-2020-21650
{
"cve_id": "CVE-2020-21650",
"title": "Myucms v2.2.1 contains a remote code execution (RCE) vulnerability in the com...",
"affected_vendor": "Myucms",
"affected_product": "Myucms v2.2.1",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "High",
"cvss_score": 8.8,
"epss_score": 0.03185,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}