CVE-2026-1813

bolo-blog bolo-solo FreeMarker Template PicUploadProcessor.java unrestricted upload

State: Published
Severity: 5.3 Medium
Published: Feb 3, 2026
Updated: Feb 23, 2026
Reserved: Feb 3, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	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	VulDB
3.1	6.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
3.0	6.3 Medium	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
2.0	6.5 Medium	AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-434 Unrestricted Upload
CWE-284 Improper Access Controls

Affected Products

Product	Versions
bolo-solobolo-blog	2.6.0Affected 2.6.1Affected 2.6.2Affected 2.6.3Affected 2.6.4Affected

References

VDB-343981 | bolo-blog bolo-solo FreeMarker Template PicUploadProcessor.java unrestricted uploadvdb-entrytechnical-description
VDB-343981 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
Submit #743402 | https://github.com/bolo-blog/bolo-solo bolo-solo V2.6.4 Arbitrary File Write and RCEthird-party-advisory
https://github.com/bolo-blog/bolo-solo/issues/329exploitissue-tracking
https://github.com/bolo-blog/bolo-solo/product

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