What’s Vulnerable › Vulnerabilities

CVE-2025-13970: OpenPLC_V3 Cross-Site Request Forgery

• Severity: high (CVSS 8.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-13 · updated 2026-10-14
• Weakness: CWE-352

Description

OpenPLC_V3 is vulnerable to a cross-site request forgery (CSRF) attack due to the absence of proper CSRF validation. This issue allows an unauthenticated attacker to trick a logged-in administrator into visiting a maliciously crafted link, potentially enabling unauthorized modification of PLC settings or the upload of malicious programs which could lead to significant disruption or damage to connected systems.

Affected products

• OpenPLC_v3: before pull request #310 — fixed in pull request #310

How to fix

Upgrade to a fixed version: OpenPLC_v3 pull request #310. Check the vendor advisory for mitigations.

References

• https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2025/icsa-25-345-10.json
• https://github.com/thiagoralves/OpenPLC_v3
• https://www.cisa.gov/news-events/ics-advisories/icsa-25-345-10

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