HOMEVULNERABILITIESCVE-2026-30888
MEDIUM

CVE-2026-30888

CWE-269Published: March 20, 2026· Updated: Mar 24, 2026

5.5
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:6.1th

Official Description

Discourse is an open-source discussion platform. Versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 allow a moderator to edit site policy documents (ToS, guidelines, privacy policy) that they are explicitly prohibited from modifying. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.

NVD Source

Technical Analysis

CVE-2026-30888 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 5.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N

Affected Vendors & Products

discourse1 product
discourse
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/discourse/discourse/security/advisories/GHSA-jj9p-p7m6-jq96

All References (1)

→
https://github.com/discourse/discourse/security/advisories/GHSA-jj9p-p7m6-jq96Vendor Advisory

Quick Facts

CVE IDCVE-2026-30888
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-269
CISA KEVNo
EPSS (30d)0.02%
Affected1 vendor
PublishedMar 20, 2026

Related CVEs (CWE-269)

CVE-2026-31852
10.0
CVE-2026-46852
9.9
CVE-2026-46964
9.9
CVE-2026-46933
9.9
CVE-2026-46893
9.9
CVE-2026-46794
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-30888 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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