What’s Vulnerable › Vulnerabilities

CVE-2026-1813: bolo-blog bolo-solo FreeMarker Template PicUploadProcessor.java unrestricted upload

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-02-04 · updated 2026-06-17
• Weakness: CWE-284

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.

Affected products

• bolo-blog bolo-solo: through 2.6.4

References

• https://github.com/bolo-blog/bolo-solo/
• https://github.com/bolo-blog/bolo-solo/issues/329
• https://vuldb.com/?ctiid.343981
• https://vuldb.com/?id.343981
• https://vuldb.com/?submit.743402

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