CVE-2026-102771: Naichen ThinkCMF · CWE-791
Source GCVE Database
Public exploit available · CVSS 5.1 Medium.
Data as of 12 Nov 2026, 23:24 UTC
- 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:PExploitation evidence
t = 0 is the CVE’s publication on cve.org
Disclosed: evidence found.
CVE published 29 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CISA SSVC: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
Timeline
CVE ID reserved
by VulDB
, 5 hours before disclosure
CVE published
on cve.org
, t = 0
CISA SSVC assessment
proof of concept public
, 16 hours after disclosure
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
| Product | Affected | Fixed in |
|---|---|---|
| NaichenThinkCMF | Affected
| 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
- nvd.nist.gov/vuln/detail/CVE-2026-102771 (opens in a new tab)
- github.com/coolcj-stack/ThinkCMF-v8.0.1-SSTI-Vulnerability/blob/main/ThinkCMF_Vulnerability_Report_EN.docx (opens in a new tab)
- vuldb.com/cve/CVE-2026-102771 (opens in a new tab)
- vuldb.com/submit/943081 (opens in a new tab)
- vuldb.com/vuln/411468 (opens in a new tab)
- vuldb.com/vuln/411468/cti (opens in a new tab)