Is CVE-2026-3289 actively exploited?

No active exploitation of CVE-2026-3289 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-3289 be exploited remotely?

Yes. CVE-2026-3289 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-3289?

CVE-2026-3289 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2026-3289

CWE-22Published: February 27, 2026· Updated: Mar 2, 2026

9.8

CVSS v3.1

EPSS:0.08%probability of exploitation in 30 daysPercentile:23.1th

Official Description

A weakness has been identified in Sanluan PublicCMS 6.202506.d. This impacts the function saveMetadata of the file TemplateCacheComponent.java of the component Template Cache Generation. Executing a manipulation can lead to path traversal. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

NVD Source

Technical Analysis

CVE-2026-3289 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.