CVE-2025-6518

LOW EPSS 23.7%

Published Jun 23, 20251y ago · Modified Jun 17, 20261w ago

2.1 CVSS 4.0

Low

Published Jun 23, 2025 1y ago

Last Modified Jun 17, 2026 1w ago

Description

A vulnerability was found in PySpur-Dev pyspur up to 0.1.18. It has been classified as critical. Affected is the function SingleLLMCallNode of the file backend/pyspur/nodes/llm/single_llm_call.py of the component Jinja2 Template Handler. The manipulation of the argument user_message leads to improper neutralization of special elements used in a template engine. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

CVSS Details

Base Score

2.1

Exploitability

—

Impact

—

Vector string

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector Network

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

23.7% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 2

CWE-1336

CWE-791

References 4

github.com https://github.com/PySpur-Dev/pyspur/issues/289
vuldb.com https://vuldb.com/?ctiid.313638
vuldb.com https://vuldb.com/?id.313638
vuldb.com https://vuldb.com/?submit.593612

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.