Is CVE-2026-1813 actively exploited?

No active exploitation of CVE-2026-1813 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-1813 be exploited remotely?

Yes. CVE-2026-1813 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-1813?

CVE-2026-1813 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2026-1813

CWE-284Published: February 4, 2026· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A vulnerability was found in bolo-blog bolo-solo up to 2.6.4. Affected is an unknown function of the file src/main/java/org/b3log/solo/bolo/pic/PicUploadProcessor.java of the component FreeMarker Template Handler. The manipulation of the argument File results in unrestricted upload. It is possible to launch the attack remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

NVD Source

Risk Analysis

Bolo-solo contains an unrestricted file upload vulnerability in the PicUploadProcessor component, allowing remote attackers to upload malicious files. This critical flaw has a CVSS score of 9.8.

While the exploit has been made public, it is not currently listed in the CISA KEV. The vulnerability is remotely exploitable.

Recommended Action

Users should restrict access to the upload functionality and monitor for unauthorized file uploads until a patch is provided by the vendor.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2026-1813 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.