Arbitrary file upload in Adlered Bolo-Solo
CVE-2026-1813
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (29.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000
Affected products
- Adlered Bolo-Solo
- Bolo-Blog Bolo-Solo — versions 2.6.0, 2.6.1, 2.6.2
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/bolo-blog/bolo-solo/issues/329 (issue-tracking, Exploit, exploit, Issue Tracking, Vendor Advisory)
- github.com/bolo-blog/bolo-solo/ (Product, product)
Frequently asked questions
- What is CVE-2026-1813?
- CVE-2026-1813 is a medium-severity vulnerability in Adlered Bolo-Solo, classified under Improper Access Control. CVSS score: 6.3/10. Published 2026-02-04.
- How severe is CVE-2026-1813?
- Medium severity. CVSS v3 base score is 6.3 out of 10.