CVE-2020-9757
The SEOmatic component before 3.3.0 for Craft CMS allows Server-Side Template Injection that leads to RCE via malformed data to the metacontainers controller.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 72.8%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
The SEOmatic component before 3.3.0 for Craft CMS allows Server-Side Template Injection that leads to RCE via malformed data to the metacontainers controller.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 72.82% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-74
- Affected
- craftcms/craft cms
- Source
- cve@mitre.org
EPSS 72.8% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/giany/CVE/blob/master/CVE-2020-9757.txtExploit, Third Party Advisory
- https://github.com/nystudio107/craft-seomatic/blob/v3/CHANGELOG.mdRelease Notes, Third Party Advisory
- https://github.com/nystudio107/craft-seomatic/commit/65ab659cb6c914c7ad671af1e417c0da2431f79bPatch, Third Party Advisory
- https://github.com/nystudio107/craft-seomatic/commit/a1c2cad7e126132d2442ec8ec8e9ab43df02cc0fPatch, Third Party Advisory
- https://github.com/giany/CVE/blob/master/CVE-2020-9757.txtExploit, Third Party Advisory
- https://github.com/nystudio107/craft-seomatic/blob/v3/CHANGELOG.mdRelease Notes, Third Party Advisory
- https://github.com/nystudio107/craft-seomatic/commit/65ab659cb6c914c7ad671af1e417c0da2431f79bPatch, Third Party Advisory
- https://github.com/nystudio107/craft-seomatic/commit/a1c2cad7e126132d2442ec8ec8e9ab43df02cc0fPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.