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High

CSRF in OpenPLC_V3 (unauthorized PLC configuration change / program upload)

IdentifiersCVE-2025-13970CWE-352· Cross-Site Request Forgery (CSRF)

OpenPLC_V3 contains a cross-site request forgery (CSRF) vulnerability due to missing/insufficient CSRF validation on administrative actions. An unauthenticated attacker can induce a logged-in administrator to visit a maliciously crafted link/page that triggers state-changing requests in the OpenPLC_V3 web interface, enabling unauthorized modification of PLC settings and/or upload of malicious PLC programs. The issue is reported as fixed in OpenPLC_V3 via upstream pull request #310 (referenced by CISA ICSA-25-345-10 and the CVE record).

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

If exploited, an attacker can cause unauthorized changes to PLC configuration and/or upload malicious logic/programs, potentially resulting in disruption of industrial processes and damage to connected systems (ICS/OT impact).

Mitigation

If you can’t patch tonight, do this now.

Reduce exposure of the OpenPLC_V3 web interface (avoid direct Internet exposure), isolate control system networks from business networks, and use secure remote access (e.g., VPN) where required. Operationally, reduce CSRF risk by hardening admin session handling and user practices (e.g., phishing resistance) as referenced in the provided content.

Remediation

Patch, then assume compromise.

Update OpenPLC_V3 to a version that includes the fix referenced as pull request #310 (or later), per CISA guidance (ICSA-25-345-10).
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

ACTIVITY FEED

Recent activity

7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

7 SOURCESView more in app
What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity4

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2025-13970
NVD
nvd.nist.gov/vuln/detail/CVE-2025-13970
MITRE CWE · CWE-352
Cross-Site Request Forgery (CSRF)
github.com
github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2025/icsa-25-345-10.json
github.com
github.com/thiagoralves/OpenPLC_v3
cisa.gov
cisa.gov/news-events/ics-advisories/icsa-25-345-10