Xdocreport: Improper Neutralization of Special Elements Used in a Template Engine
CVE-2025-64087 is a critical-severity improper neutralization of special elements used in a template engine vulnerability in Xdocreport from Opensagres, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Xdocreport versions: 1.0.0 through 2.1.0. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.59% chance of exploitation within 30 days, which is low compared with other CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Check which version of Xdocreport you run against the affected versions below, and install the vendor's latest release.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Opensagres | Xdocreport | 1.0.0 through 2.1.0 | Not stated |
Version data comes from NVD's product matching. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by CISA (ADP).
Official description
A Server-Side Template Injection (SSTI) vulnerability in the FreeMarker component of opensagres XDocReport v1.0.0 to v2.1.0 allows attackers to execute arbitrary code via injecting crafted template expressions.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Neutralization of Special Elements Used in a Template Engine
The product uses a template engine to insert or process externally-influenced input, but it does not neutralize or incorrectly neutralizes special elements or syntax that can be interpreted as template expressions or other code directives when processed by the engine.
How developers prevent this class of flaw
- Choose a template engine that offers a sandbox or restricted mode, or at least limits the power of any available expressions, function calls, or commands.
- Use the template engine's sandbox or restricted mode, if available.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: poc, automatable: yes, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Patches and release notes
- github.com/opensagres/xdocreport/pull/705Issue Tracking, Third Party Advisory
Other references
- github.com/opensagres/xdocreportProduct
- hackmd.io/@cuongnh/BJEnw7SAlgPermissions Required
- hackmd.io/@cuongnh/SkQvhEf0lxPermissions Required
Other vulnerabilities in Xdocreport
- 9.8 Critical severity
Recent Improper Neutralization of Special Elements Used in a Template Engine vulnerabilities
- 8.8 High severity
- 9.8 Critical severity
- 8.8 High severity
- 9.8 Critical severity
- 9.0 Critical severity
- 9.8 Critical severity
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