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CVE-2023-22488

20
FAUCET Score

CVE-2023-22488 is a medium-severity vulnerability affecting Flarum forum software versions prior to 1.6.3. It allows authenticated users to bypass access controls and view restricted content by subscribing to discussions, particularly when the Subscriptions extension is enabled. The vulnerability has a CVSS score of 5.4, indicating a low attack complexity and the potential for limited confidentiality and integrity impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.6.3CPE matchmatch criteria
cpe:2.3:a:flarum:flarum:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.8MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.40%
Probability of exploitation in next 30 days
EPSS Percentile
32.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0040 is in the 42nd percentile among its peer group of 21,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 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

Patch Available

Vendor Patches (2)

composerpatch availablevia ghsa
Product: flarum/coreFixed in: 1.6.3
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-8gcg-vwmw-rxj4medium

Flarum notifications can leak restricted content

Jan 10, 2023

References

github.com / flarum/framework/commit/d0a2b95dca57d3dae9a0d77b610b1cb1d0b1766a
PatchThird Party Advisory
github.com / flarum/framework/security/advisories/GHSA-8gcg-vwmw-rxj4
Third Party Advisory