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VulnerabilityPublished

CVE-2025-70830: Freemarker template engine of Datart · A Server-Side Template Injection (SSTI)

Source CVE Database V5

0

Not known to be exploited · CVSS 9.9 Critical.

Data as of 26 Oct 2026, 09:16 UTC

CVSS 3.1 base score
9.9Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
1.1% chance of exploitation in 30 days – higher than 65% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  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

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

1. Restrict access to Datart instances strictly to trusted users and networks to minimize the risk of authenticated attackers. 2. Implement strong authentication mechanisms, including multi-factor authentication, to reduce the risk of credential compromise. 3. Apply rigorous input validation and sanitization on all user inputs, especially those interacting with template engines or SQL fields, to prevent injection of malicious template syntax. 4. Monitor logs and application behavior for unusual template processing or execution patterns indicative of exploitation attempts. 5. Isolate the Datart environment using network segmentation and least privilege principles to limit potential damage from a successful attack. 6. Stay informed about vendor updates and apply patches promptly once available. 7. Consider deploying Web Application Firewalls (WAFs) with custom rules to detect and block SSTI payloads targeting Freemarker templates. 8. Conduct security reviews and code audits focusing on template usage and input handling within Datart deployments.

Description

A Server-Side Template Injection (SSTI) vulnerability in the Freemarker template engine of Datart v1.0.0-rc.3 allows authenticated attackers to execute arbitrary code via injecting crafted Freemarker template syntax into the SQL script field.

References

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