Read the docs
TI-2013-03428 Aliases CVE-2013-3926GHSA-9fh4-qmm7-wrrj

Atlassian Crowd 2.6.3 allows remote attackers to execute arbitrary commands via…

Priority LOW 37Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Partial · Partial · Partial
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

Atlassian Crowd 2.6.3 allows remote attackers to execute arbitrary commands via unspecified vectors related to a "symmetric backdoor." NOTE: as of 20130704, the vendor could not reproduce the issue, stating "We've been unable to substantiate the existence of [CVE-2013-3926]. The author of the article has not contacted Atlassian and has provided no detail, making it difficult to validate the claim... If we can confirm that there is a vulnerability, a patch will be issued.

Why it matters now

EPSS 0.01937 80th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:atlassian:crowd:2.6.3:*:*:*:*:*:*:*2.6.3VulnerableAtlassian
  • cpe:2.3:a:atlassian:crowd:2.6.3:*:*:*:*:*:*:* Versions 2.6.3 Vulnerable ·Atlassian

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2013-3926
  2. 2026-10-03 Alias added: GHSA-9fh4-qmm7-wrrj

References

  • TI-2019-08653 Atlassian Crowd and Crowd Data Center had the pdkinstall development plugin incorrectly… KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-67904 Arbitrary file access in Atlassian Data Center products KEVCVSS 4.0CRITICAL 9.3
  • TI-2012-02540 Atlassian JIRA before 5.0.1; Confluence before 3.5.16, 4.0 before 4.0.7, and 4.1 before… CVSS 3.1CRITICAL 9.1
  • TI-2022-09598 Improper authentication in Atlassian Bamboo Server CVSS 3.1CRITICAL 9.8
  • TI-2022-21516 Affected versions of Atlassian Crowd allow an attacker to authenticate as the crowd… CVSS 3.1CRITICAL 9.8
  • TI-2016-05568 The LDAP directory connector in Atlassian Crowd before 2.8.8 and 2.9.x before 2.9.5… CVSS 3.0CRITICAL 9.8
See all 24 →

Sources