CVE-2024-7902Public exploitNetwork attack vector

Unauthenticated user redirection via unvalidated sign-out source

Published Aug 17, 2024 · Updated Aug 19, 2024

Open redirect in Open Journal Systems 3.4.0-6 and earlier allows remote attackers to redirect users through a crafted sign-out URL. LoginHandler::signOut removes at signs from the source parameter, then concatenates the remaining value into a redirect URL without validating it as a safe destination. The endpoint requires no authentication, but a user must follow the crafted URL; the browser then reaches an attacker-chosen site.

CVSS severity6.1
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Open redirect in Open Journal Systems 3.4.0-6 and earlier allows remote attackers to redirect users through a crafted sign-out URL. LoginHandler::signOut removes at signs from the source parameter, then concatenates the remaining value into a redirect URL without validating it as a safe destination. The endpoint requires no authentication, but a user must follow the crafted URL; the browser then reaches an attacker-chosen site.

The record

CVE
CVE-2024-7902
Published
Aug 17, 2024
Updated
Aug 19, 2024
Vendor
Public Knowledge Project
Product
Open Journal Systems
Classifications
CWE-601, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 19, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.4.0-6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Public Knowledge Project · Open Journal Systemsversion=3.4.0-6

Published CVSS scores

4.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
6.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.0VulDBAV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
T1204.001Malicious Link

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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