HOMEVULNERABILITIESCVE-2026-33251
MEDIUM

CVE-2026-33251

CWE-863Published: March 20, 2026· Updated: Mar 24, 2026

5.4
CVSS v3.1
EPSS:0.03%probability of exploitation in 30 daysPercentile:6.7th

Official Description

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, an authorization bypass vulnerability in hidden Solved topics may allow unauthorized users to accept or unaccept solutions. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. As a workaround, ensure only trusted users are part of the Site Setting for accept_all_solutions_allowed_groups.

NVD Source

Technical Analysis

CVE-2026-33251 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

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

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/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-vm2x-9h8x-7jxm

All References (1)

→
https://github.com/discourse/discourse/security/advisories/GHSA-vm2x-9h8x-7jxmMitigation · Vendor Advisory

Quick Facts

CVE IDCVE-2026-33251
CVSS Score5.4 / 10
SeverityMEDIUM
WeaknessCWE-863
CISA KEVNo
EPSS (30d)0.03%
Affected1 vendor
PublishedMar 20, 2026

Related CVEs (CWE-863)

CVE-2026-48303
10.0
CVE-2026-44330
10.0
CVE-2026-48286
10.0
CVE-2026-41283
9.9
CVE-2026-41050
9.9
CVE-2026-43948
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-33251 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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