Vulnerability report

Trusted Third Party Report High Confidence Not in CISA KEV

CVE-2025-10211

ChanCMS Server-Side Request Forgery

yanyutao0402 / ChanCMS · 3.3.0

Watch CVE-2025-10211 Browse KEV feed
Severity
CVSS 5.3 · Medium
Confidence
High
Exploit status
Trusted Third Party Report
EPSS
0.8%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2025-10211 is a vulnerability affecting yanyutao0402 ChanCMS. A security vulnerability has been detected in yanyutao0402 ChanCMS 3.3.0.

Have exploitation attempts been observed?

Yes. Exploitation attempts have been reported for this vulnerability. Previdian lists it as a known exploited vulnerability. Also reported by third-party sources. Confidence is high.

Who is affected?

yanyutao0402 / ChanCMS 3.3.0.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

A security vulnerability has been detected in yanyutao0402 ChanCMS 3.3.0

A security vulnerability has been detected in yanyutao0402 ChanCMS 3.3.0. The affected element is the function CollectController of the file /cms/collect/getArticle. The manipulation of the argument taskUrl leads to server-side request forgery. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Eine Schwachstelle wurde in yanyutao0402 ChanCMS 3.3.0 gefunden. Hiervon betroffen ist die Funktion CollectController der Datei /cms/collect/getArticle. Dank der Manipulation des Arguments taskUrl mit unbekannten Daten kann eine server-side request forgery-Schwachstelle ausgenutzt werden. Ein Angriff ist aus der Distanz möglich. Die Ausnutzung wurde veröffentlicht und kann verwendet werden.

yanyutao0402 Affected
ChanCMS
3.3.0
View vendor advisory (opens in new tab)
Published
10 Sep 2025
Exploitation Attempts Reported
10 Sep 2025
Attack vector
Remote
Complexity
Low
Privileges
Low
User interaction
None

Tags

nuclei_scanner

CVE References

Exploitation evidence

Evidence of exploitation attempts

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploitation Attempts Observed in the Wild

The Shadowserver

Recorded 10 Sep 2025

A trusted third party reported exploitation attempts.

Proof of concept available

Nuclei Templates

Recorded 12 Jun 2026

Public scanner or PoC coverage increases practical exploitability.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

Learn about Pro API access
Source Added
The Shadowserver First 2025-09-10 20:02 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Virtual patch status

No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner Reference Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-10211.yaml 01 Jun 2026

Risk and context

Severity, weaknesses, and research context

CVSS v4.0

5.3 Medium

Potential damage if exploited. Separate from whether attackers are using it.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

EPSS

0.8%

Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.

Weaknesses

Server-Side Request Forgery (SSRF) CWE-918

All CVSS Scores

CVSS v4.0 5.3 Medium

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

CVSS v3.1 6.3 Medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

CVSS v3.0 6.3 Medium

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

CVSS v2.0 6.5 Medium

AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

ChanCMS <= 3.3.0 - Server-Side Request Forgery

nuclei · Created Unknown

Timeline

From disclosure to observed exploitation attempts

  1. 14:21 UTC

    Public PoC available

    Public proof-of-concept code published

  2. 15:34 UTC

    Nuclei template available

    Scanner coverage available

  3. 20:02 UTC

    CVE published

    Vulnerability disclosed publicly

  4. 20:02 UTC

    Added to Previdian KEV Feed

    High-confidence, third-party report of exploitation attempts

  5. 10:24 UTC

    CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

Start 14-day Pro trial Read API docs
  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2025-10211

Sample API response 
{
  "cve_id": "CVE-2025-10211",
  "confidence": "High",
  "cvss_score": 5.3,
  "cvss_estimated": false,
  "epss_score": 0.0075,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}