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CVE-2018-5229

19
FAUCET Score

CVE-2018-5229 is a medium-severity cross-site scripting (XSS) vulnerability affecting Atlassian Universal Plugin Manager versions prior to 2.22.9. An authenticated attacker can inject arbitrary HTML or JavaScript into user-submitted add-on names, which would then execute in the context of other users viewing those names. The vulnerability has a CVSSv3 score of 5.4, indicating low impact on confidentiality and integrity, and requires user interaction. There is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.22.9CPE matchmatch criteria
cpe:2.3:a:atlassian:universal_plugin_manager:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.4MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.59%
Probability of exploitation in next 30 days
EPSS Percentile
44.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0059 is in the 73rd percentile among its peer group of 15,224 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

ecosystem.atlassian.net / browse/UPM-5871
Issue TrackingPatchVendor Advisory