8.8

CVE-2023-22526: atlassian confluence_data_center Improper Control of Generation of Code

Modified
Published 16-01-2024Last modified 20-06-2025

Vulnerability summary

CVE-2023-22526 is a high (CVSS 8.8) Improper Control of Generation of Code vulnerability in atlassian confluence_data_center. EPSS estimates a 1.57% chance of exploitation in the next 30 days, higher than 75.3% of scored vulnerabilities. Fixed in 7.19.17, 8.5.5, 8.7.2.

Priority
Routine

Not severe (CVSS 7.2, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
1.57%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 16-01-2024
    PublishedVulnerability first disclosed.
  2. 20-06-2025
    Last modifiedVulnerability information updated.

Description

This High severity RCE (Remote Code Execution) vulnerability was introduced in version 7.19.0 of Confluence Data Center. This RCE (Remote Code Execution) vulnerability, with a CVSS Score of 7.2, allows an authenticated attacker to execute arbitrary code which has high impact to confidentiality, high impact to integrity, high impact to availability, and requires no user interaction. Atlassian recommends that Confluence Data Center customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions: Confluence Data Center and Server 7.19: Upgrade to a release 7.19.17, or any higher 7.19.x release Confluence Data Center and Server 8.5: Upgrade to a release 8.5.5 or any higher 8.5.x release Confluence Data Center and Server 8.7: Upgrade to a release 8.7.2 or any higher release See the release notes ([https://confluence.atlassian.com/doc/confluence-release-notes-327.html]). You can download the latest version of Confluence Data Center from the download center ([https://www.atlassian.com/software/confluence/download-archives]). This vulnerability was discovered by m1sn0w and reported via our Bug Bounty program

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.57%

Chance of exploitation in the next 30 days

Percentile

75%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.57% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Atlassian2 products
  • confluence_data_center≥ 7.13.0 (fixed in 7.19.17, 8.5.5, 8.7.2) | ≥ 7.19.0 (fixed in 7.19.17, 8.5.5, 8.7.2) | ≥ 8.0.0 (fixed in 7.19.17, 8.5.5, 8.7.2) | ≥ 8.1.0 (fixed in 7.19.17, 8.5.5, 8.7.2) | ≥ 8.2.0 (fixed in 7.19.17, 8.5.5, 8.7.2) | ≥ 8.3.0 (fixed in 7.19.17, 8.5.5, 8.7.2) | ≥ 8.4.0 (fixed in 7.19.17, 8.5.5, 8.7.2) | ≥ 8.5.0 (fixed in 7.19.17, 8.5.5, 8.7.2) | ≥ 8.6.0 (fixed in 7.19.17, 8.5.5, 8.7.2) | ≥ 8.7.1 (fixed in 7.19.17, 8.5.5, 8.7.2) | ≥ 7.19.0, < 7.19.17 | ≥ 8.5.0, < 8.5.5 | ≥ 8.7.0, < 8.7.2
  • confluence_server≥ 7.19, < 7.19.17 | ≥ 8.5.0, < 8.5.5 | ≥ 8.7.0, ≤ 8.7.2

1 vendor · 2 products

References

2 links