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Fencer Intel
high 7.5

CVE-2013-3926 json

Atlassian Crowd 2.6.3 allows remote attackers to execute arbitrary commands via unspecified vectors related to a "symmetric backdoor." NOTE…

published 13y ago modified 4mo ago also EUVD-2013-3858

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 80%
public exploits
0
none known

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.

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Exploit prediction

1.94% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • commandfive.com http://www.commandfive.com/papers/C5_TA_2013_3925_AtlassianCrowd.pdf referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.