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Forgejo CVE-2023-49948

MEDIUM
2023-12-03 cve@mitre.org
5.3
CVSS 3.1 · NVD
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Vulnerability Assessment

Impact

CVSS score of 5.3 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.8% exploitation probability (EPSS)

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AnalysisAI

Forgejo before 1.20.5-1 allows remote attackers to test for the existence of private user accounts by appending .rss (or another extension) to a URL. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Forgejo before 1.20.5-1 allows remote attackers to test for the existence of private user accounts by appending .rss (or another extension) to a URL. Affected products include: Forgejo. Version information: before 1.20.5.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

DescriptionNVD

Forgejo before 1.20.5-1 allows remote attackers to test for the existence of private user accounts by appending .rss (or another extension) to a URL.

Threat Intelligence Overview

EPSS Score
0.8%
Top 47% exploitable
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.8%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

27
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +26
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:a:forgejo:forgejo:*:*:*:*:*:*:*:*
CVE-2026-89094 CRITICAL
9.9 Sep 10

Remote code execution in Forgejo before 16.0.4 allows an authenticated user who can supply a template repository to run

CVE-2025-68937 CRITICAL
9.5 Dec 26

Forgejo before 13.0.2 (and the 11 LTS line before 11.0.7) mishandles out-of-repository symlink destinations when generat

CVE-2023-49946 CRITICAL
9.1 Dec 03

In Forgejo before 1.20.5-1, certain endpoints do not check whether an object belongs to a repository for which permissio

CVE-2023-49947 HIGH
7.5 Dec 03

Forgejo before 1.20.5-1 allows 2FA bypass when docker login uses Basic Authentication. Rated high severity (CVSS 7.5), t

CVE-2026-119545 MEDIUM
6.9 Oct 30

Unauthenticated blind server-side request forgery in Forgejo (through 15.0.11, 16.0.0 through 16.0.7, and 17.0.0 through

CVE-2026-119546 MEDIUM
6.8 Oct 30

Forgejo's restore-repo CLI can be induced to read files outside the dump directory - including repository configuration

CVE-2026-82556 LOW POC
2.1 Aug 30

Server-side request forgery in Forgejo up to 15.0.4 allows authenticated users to bypass the repository migration IP all

CVE-2026-59102 LOW POC
2.1 Jul 02

Stored XSS in Forgejo before 15.0.3 allows authenticated users to execute arbitrary JavaScript in other users' browsers

CVE-2026-119547 MEDIUM
5.3 Oct 30

Forgejo through 15.0.11, 16.0.0 through 16.0.7, and 17.0.0 through 17.0.1 lets an authenticated user with a read:user-sc

CVE-2026-90679 MEDIUM
4.3 Sep 13

Identity spoofing in Forgejo's ActivityPub federation allows a remote attacker who controls any single valid ActivityPub

CVE-2026-89151 LOW
3.5 Sep 11

Restricted API token authorization bypass in Forgejo before 16.0.4 (and before 15.0.8 on the 15.x branch) allows authent

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