CVE-2022-37421
Silverstipe CMS Stored XSS in custom meta tags
Silverstripe silverstripe/cms through 4.11.0 allows XSS.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Silverstripe silverstripe/cms through 4.11.0 allows XSS.
- Record
CVE-2022-37421- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List
Silverstripe silverstripe/cms through 4.11.0 allows XSS.
- Record
CVE-2022-37421- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2022-7402
Silverstripe silverstripe/cms through 4.11.0 allows XSS.
- Record
EUVD-2022-7402- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-pp74-g2q5-j4jf
Silverstipe CMS Stored XSS in custom meta tags
A malicious content author could create a custom meta tag and execute an arbitrary JavaScript payload. This would require convincing a legitimate user to access a page and enter a custom keyboard shortcut. This requires CMS access to exploit.
- Record
GHSA-pp74-g2q5-j4jf- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
Silverstripe silverstripe/cms through 4.11.0 allows XSS.
- Record
CVE-2022-37421- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-pp74-g2q5-j4jf
Silverstipe CMS Stored XSS in custom meta tags
A malicious content author could create a custom meta tag and execute an arbitrary JavaScript payload. This would require convincing a legitimate user to access a page and enter a custom keyboard shortcut. This requires CMS access to exploit.
- Record
GHSA-pp74-g2q5-j4jf- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVBIT-silverstripe-2022-37421 No score
Silverstripe silverstripe/cms through 4.11.0 allows XSS.
- Record
BIT-silverstripe-2022-37421- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
silverstripe/cmsPackagist |
4.0.0 up to 4.11.3 | 4.11.3 |
silverstripeBitnami |
3.0.0 up to 4.11.3 | 4.11.3 |
silverstripe/cmsPackagist |
4.0.0 up to 4.11.3, plus listed versions 4.0.14.0.1-rc14.0.24.0.34.0.4 Show 45 moreShow less4.0.54.0.64.0.74.1.04.1.0-rc14.1.0-rc24.1.14.1.24.1.34.1.44.1.54.10.04.10.0-beta14.10.0-rc14.10.14.10.24.11.04.11.0-beta14.11.0-rc14.11.14.11.24.2.04.2.0-beta14.2.14.2.24.2.34.2.44.2.54.3.04.3.0-rc14.3.14.3.24.3.34.3.44.3.54.4.04.4.0-rc14.4.14.4.24.4.34.4.44.4.54.5.04.5.0-alpha14.5.0-rc1 |
4.11.3 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-37421 is a medium vulnerability (CVSS 5.4) in Silverstripe, published November 21, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.58%, the 48th percentile. Fixed in silverstripe/cms 4.11.3.
References
silverstripe.org/download/security-releases
forum.silverstripe.org/c/releases
github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/cms/CVE-2022-37421.yaml
nvd.nist.gov/vuln/detail/CVE-2022-37421
Left out here: 21 versions. The JSON record has them.