CVE-2021-27938 json
XSS in CreateQueuedJobTask
published 2021-03-16 5 y ago modified 2026-06-17 4 mo ago also GHSA-xgpf-p52j-pf7m , EUVD-2021-0726
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 55%
- public exploits
- 0
- none known
Summary
A vulnerability has been identified in the Silverstripe CMS 3 and 4 version of the symbiote/silverstripe-queuedjobs module. A Cross Site Scripting vulnerability allows an attacker to inject an arbitrary payload in the CreateQueuedJobTask dev task via a specially crafted URL.
Patch / fix
- packagist symbiote/silverstripe-queuedjobs 3.0.2, 3.1.4, 4.0.7, 4.1.2, 4.2.4, 4.3.3, 4.4.3, 4.5.1, 4.6.4
- symbiote silverstripe_queued_jobs 3.0.2, 3.1.4, 4.0.7, 4.1.2, 4.2.4, 4.3.3, 4.4.3, 4.5.1, 4.6.4
Exploit prediction
0.75% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | symbiote/silverstripe-queuedjobs | >=3.0.0, <3.0.2 >=3.1.0, <3.1.4 >=4.0.0, <4.0.7 >=4.1.0, <4.1.2 >=4.2.0, <4.2.4 >=4.3.0, <4.3.3 >=4.4.0, <4.4.3 >=4.5.0, <4.5.1 >=4.6.0, <4.6.4 |
3.0.2 3.1.4 4.0.7 4.1.2 4.2.4 4.3.3 4.4.3 4.5.1 4.6.4 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/symbiote/silverstripe-queuedjobs/releases
web, release-notes, third-party-advisory
-
silverstripe.org
/download/security-releases/cve-2021-27938
web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-27938
advisory
-
github.com
/FriendsOfPHP/security-advisories/blob/master/symbiote/silverstripe-queuedjobs/CVE-2021-27938.yaml
web
Sources
- CVE List CVE-2021-27938
- GitHub Advisory GHSA-xgpf-p52j-pf7m
- NVD CVE-2021-27938
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