Default SilverStripe GraphQL Server (aka silverstripe/graphql) 3.x through 3.4.1…
Priority LOW 22CWE-863Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-863.
Summary
Default SilverStripe GraphQL Server (aka silverstripe/graphql) 3.x through 3.4.1 permission checker not inherited by query subclass.
Why it matters now
EPSS 0.00812 57th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed silverstripe/graphql (Packagist): 3.5.2
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | silverstripe/graphql (Packagist) | 3.0.0 to before 3.5.2 | 3.5.2 | Patch available | GHSA-r7rh-g777-g5gx |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- silverstripe/graphql (Packagist) Vendor— Affected 3.0.0 to before 3.5.2 Fixed in 3.5.2 Patch available GHSA-r7rh-g777-g5gx
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:silverstripe:silverstripe:*:*:*:*:*:*:*:* | 3.0.0 – 3.4.1 | Vulnerable | silverstripe |
- cpe:2.3:a:silverstripe:silverstripe:*:*:*:*:*:*:*:* Versions 3.0.0 – 3.4.1 Vulnerable ·silverstripe
Remediation
- Fix · GHSA-r7rh-g777-g5gx silverstripe/graphql (Packagist) Fixed in 3.5.2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-28661
- 2026-10-03 Alias added: GHSA-r7rh-g777-g5gx
References
Advisory 2
Other 4
- https://github.com/silverstripe/silverstripe-graphql/pull/407/commits/16961459f681f7b32145296189dfdbcc7715e6ed
- https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/graphql/CVE-2021-28661.yaml
- https://github.com/silverstripe/silverstripe-graphql
- https://github.com/silverstripe/silverstripe-graphql/releases/tag/3.5.2
More Silverstripe vulnerabilities
- TI-2007-02239 Unspecified vulnerability in the search functionality in SilverStripe 2.0.0 has unknown impact and attack vectors. CVSS 2.0HIGH 10.0
- TI-2019-09110 In SilverStripe through 4.3.3, a missing warning about leaving install.php in a public… CVSS 3.1CRITICAL 9.8
- TI-2019-04049 All versions of SilverStripe 3 prior to 3.6.7 and 3.7.3, and all versions of SilverStripe… CVSS 3.0CRITICAL 9.8
- TI-2019-09281 In SilverStripe through 4.3.3, the previous fix for SS-2018-007 does not completely… CVSS 3.1HIGH 8.8
- TI-2011-04272 code/sitefeatures/PageCommentInterface.php in SilverStripe 2.4.x before 2.4.6 might allow… CVSS 2.0MEDIUM 6.8
- TI-2020-07421 In SilverStripe through 4.5, files uploaded via Forms to folders migrated from… CVSS 3.1HIGH 7.5
Sources
- CVE-2021-28661 · CVE Program
- CVE-2021-28661 · NVD
- FIRST EPSS
- GHSA-r7rh-g777-g5gx · GitHub Advisory Database · CC BY 4.0
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