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CVE-2022-31017

12
FAUCET Score

CVE-2022-31017 is a logic error in Zulip versions 2.1.0 through 5.2, where editing a message in a private stream with protected history incorrectly sends the edited message to all current subscribers via an API event. This vulnerability has a low CVSS score of 2.6, indicating a low impact of information disclosure (C:L) requiring user interaction (UI:R) and high attack complexity (AC:H). There is no evidence of active exploitation, no known exploit code, and minimal community discussion or media coverage, suggesting it is not widely targeted.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.1.0, < 5.3CPE matchmatch criteria
cpe:2.3:a:zulip:zulip:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

2.0LOW

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
0.5
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.54%
Probability of exploitation in next 30 days
EPSS Percentile
42.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0054 is in the 82nd percentile among its peer group of 56 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / zulip/zulip/security/advisories/GHSA-m5j3-jp59-6f3q
Third Party Advisory