CVE-2017-18111: atlassian application_links
Vulnerability summary
CVE-2017-18111 is a high (CVSS 8.7) vulnerability in atlassian application_links. EPSS estimates a 1.63% chance of exploitation in the next 30 days, higher than 76.2% of scored vulnerabilities.
Not severe (CVSS 8.7, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Timeline
- 29-03-2019PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
The OAuthHelper in Atlassian Application Links before version 5.0.10, from version 5.1.0 before version 5.1.3, and from version 5.2.0 before version 5.2.6 used an XML document builder that was vulnerable to XXE when consuming a client OAuth request. This allowed malicious oauth application linked applications to probe internal network resources by requesting internal locations, read the contents of files and also cause an out of memory exception affecting availability via an XML External Entity vulnerability.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
1.63%
Chance of exploitation in the next 30 days
Percentile
76%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.63% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Atlassian1 product
- application_links≥ unspecified, < 5.0.10 | ≥ 5.1.0, < unspecified | ≥ unspecified, < 5.1.3 | ≥ 5.2.0, < unspecified | ≥ unspecified, < 5.2.6 | < 5.0.10 | ≥ 5.1.0, < 5.1.3 | ≥ 5.2.0, < 5.2.6
1 vendor · 1 product