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VulnerabilityPublished

CVE-2026-102771: Naichen ThinkCMF · CWE-791

Source GCVE Database

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Authoritative record:CVE-2026-102771· Medium 5.1

Public exploit available · CVSS 5.1 Medium.

Data as of 12 Nov 2026, 23:24 UTC

CVSS 4.0 base score
5.1Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 15% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Exploitation evidence

t = 0 is the CVE’s publication on cve.org

  1. Disclosed: evidence found.

    CVE published 29 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    CISA SSVC: proof of concept public

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

Timeline

  1. CVE ID reserved

    by VulDB

    , 5 hours before disclosure

  2. CVE published

    on cve.org

    , t = 0

  3. CISA SSVC assessment

    proof of concept public

    , 16 hours after disclosure

  4. In Threat Radar

    record ingested

    , 27 days after disclosure

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA SSVC, the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
NaichenThinkCMFAffected
  • 8.0.0 – 8.0.7
8 affected builds
Fixed in–

AI-suggested

Users should monitor for any future vendor advisories or patches. Until a fix is available, restrict access to the affected functionality to trusted users only and consider additional input validation or filtering on template inputs if possible.

Description

A security vulnerability exists in Naichen ThinkCMF up to version 8.0.7 in the Email Template component. The flaw is in the MailController::templatePut function, leading to improper neutralization of special elements in the template engine. This vulnerability can be exploited remotely and has been publicly disclosed. The vendor has not responded to the disclosure, and no patch information is available. The CVSS score is 4.7, indicating a medium severity level.

References

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