Description
A flaw has been found in Dianping CAT 3.0.0/3.1.0/4.0-RC1. This affects the function Handler.redirect of the file Handler.java of the component Login/Logout. Executing a manipulation of the argument rtnUrl can lead to open redirect. The attack may be performed from remote. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Published: 2026-11-09
Score: 5.3 Medium
EPSS: n/a
KEV: No
Impact: Open Redirection
Action: Patch
AI Analysis

Impact

The flaw lies in the Handler.redirect function of the Login/Logout component, allowing an attacker to manipulate the rtnUrl argument and cause the application to redirect users to a chosen URL. This can lead to phishing or malware delivery, compromising user trust and potentially credentials. The weakness is classified as CWE-601, a type of open redirect vulnerability.

Affected Systems

Dianping CAT versions 3.0.0, 3.1.0, and 4.0‑RC1 are affected.

Risk and Exploitability

The CVSS score of 5.3 denotes moderate severity. EPSS is not available, and the vulnerability is not listed in the CISA KEV catalog. The attack vector is remote, and the vulnerability has a published exploit, indicating that an attacker could successfully leverage it without special local conditions.

Generated by OpenCVE AI on November 9, 2026 at 01:20 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update Dianping CAT to a version that has patched the open‑redirect flaw.
  • Validate the rtnUrl parameter to ensure only trusted internal URLs are allowed before redirecting.
  • Configure a web‑application firewall or equivalent security controls to block requests that redirect to external or suspicious URLs.

Generated by OpenCVE AI on November 9, 2026 at 01:20 UTC.

Tracking

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Advisories

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History

Mon, 09 Nov 2026 00:45:00 +0000

Type Values Removed Values Added
Description A flaw has been found in Dianping CAT 3.0.0/3.1.0/4.0-RC1. This affects the function Handler.redirect of the file Handler.java of the component Login/Logout. Executing a manipulation of the argument rtnUrl can lead to open redirect. The attack may be performed from remote. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Title Dianping CAT Login/Logout Handler.java Handler.redirect
First Time appeared Dianping
Dianping cat
Weaknesses CWE-601
CPEs cpe:2.3:a:dianping:cat:*:*:*:*:*:*:*:*
Vendors & Products Dianping
Dianping cat
References
Metrics cvssV2_0

{'score': 5, 'vector': 'AV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:C'}

cvssV3_0

{'score': 4.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C'}

cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P'}

Subscriptions

Dianping Cat
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-11-09T00:30:31.394Z

Reserved: 2026-11-08T10:49:05.033Z

Link: CVE-2026-124505

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-11-09T01:17:02.600

Modified: 2026-11-09T01:17:02.757

Link: CVE-2026-124505

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-09T01:30:15Z

Weaknesses
  • CWE-601

    URL Redirection to Untrusted Site ('Open Redirect')