Silverstripe Framework is a PHP framework which powers the Silverstripe CMS. In some cases, form messages can contain HTML markup. This is an intentional feature, allowing links and other relevant HTML markup for the given message. Some form messages include content that the user can provide. There are scenarios in the CMS where that content doesn't get correctly sanitised prior to being included in the form message, resulting in an XSS vulnerability. This issue has been addressed in silverstripe/framework version 5.3.8 and users are advised to upgrade. There are no known workarounds for this vulnerability.
CVE-2024-53277
This medium-severity CVE scores 5.4 under NVD CVSS v3. EPSS exploit probability: 1.1%, top 22% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.4
- EG Score
- 5.4(medium)
- EG Risk
- —
- EPSS
- 23.3%
- KEV
- Not listed
Published
January 14, 2025
Last Modified
September 4, 2025
References (3)
- security-advisories@githubhttps://github.com/silverstripe/silverstripe-framework/commit/74904f539347b7d1f8c5b5fb9e28d62ff251ee00
- security-advisories@githubhttps://github.com/silverstripe/silverstripe-framework/security/advisories/GHSA-ff6q-3c9c-6cf5
- security-advisories@githubhttps://www.silverstripe.org/download/security-releases/cve-2024-53277
Affected Packages
(1 across 1 ecosystem)
Packagist(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| silverstripe/framework | 2.4.10 ... 5.3.7 (442 versions) | 5.3.8 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 40× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 14:07 UTCEPSS rescore
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- 2026-05-30 13:19 UTCEG score recompute
- 2026-05-30 04:53 UTCOSV refresh
- 2026-05-29 13:43 UTCEPSS rescore
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2024-53277?
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Dependency Blast Radius
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