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CVE-2024-45051

Bypass of email address validation via encoded email addresses in Discourse

HIGH
8.2
CVSS Score
Published: October 7, 2024 at 08:23 PM UTC
Updated: June 17, 2026 at 07:53 AM UTC
1 product affected across 1 vendorDiscourse

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Severity
HIGH8.2
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Discourse is an open source platform for community discussion. A maliciously crafted email address could allow an attacker to bypass domain-based restrictions and gain access to private sites, categories and/or groups. This issue has been patched in the latest stable, beta and tests-passed version of Discourse. All users area are advised to upgrade. There are no known workarounds for this vulnerability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Discourse· Discourse
95%
v < 3.3.2v < 3.4.0v < 3.4.0.beta2beta ≤ v < 3.4.0.beta2stable ≤ v < 3.3.23.4.0 beta1betastable
Affected range stops below 3.3.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.4.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.4.0.beta2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://github.com/discourse/discourse/security/advisories/GHSA-2vjv-pgh4-6rmq

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.2HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-287NVD-CWE-noinfo

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