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7.5
CVE-2013-3926: Atlassian Crowd 2.6.3 lets remote attacker run commands
CVE-2013-3926 · published 13 years ago
Summary
The version 2.6.3 of Atlassian Crowd could allow someone on the network to make the server execute any command they choose. This could let an attacker take control of the system or disrupt its operation. Until the vendor confirms and releases a fix, consider upgrading to a newer version or restricting network access to the Crowd server.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| atlassian | crowd |
2.6.3 cpe:2.3:a:atlassian:crowd:2.6.3:*:*:*:*:*:*:* |
Original advisory text
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 issu...
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.
Internet-facing
14 days
Internal
60 days
- Not known to be exploited
- Can be exploited automatically (estimated)
- Gives an attacker partial control (estimated)
Severity
7.5
High
Timeline
Published1 Jul 2013
Updated3 Nov 2026
First seen29 Sep 2026
Sources
CVE-2013-3926 · NVD
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