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TI-2026-01491 Aliases CVE-2026-1813GHSA-2hmq-qjp7-8j88

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

Priority MEDIUM 57CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass, Code execution
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-284 and CWE-434.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0037 31st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
bolo-blogbolo-solo2.6.0; 2.6.1; 2.6.2; 2.6.3; 2.6.4—No fix listedCNA
  • bolo-solo Vendorbolo-blog Affected 2.6.0; 2.6.1; 2.6.2; 2.6.3; 2.6.4 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:adlered:bolo-solo:*:*:*:*:*:*:*:*up to 2.6.4Vulnerablebolo-blog
  • cpe:2.3:a:adlered:bolo-solo:*:*:*:*:*:*:*:* Versions up to 2.6.4 Vulnerable ·bolo-blog

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-1813
  2. 2026-10-03 Alias added: GHSA-2hmq-qjp7-8j88

References

Exploit 1

Other 1

  • TI-2023-21647 File Upload vulnerability in adlered bolo-solo v.2.6 allows a remote attacker to execute… CVSS 3.1CRITICAL 9.8
  • TI-2026-01490 bolo-blog bolo-solo Filename BackupService.java importFromCnblogs path traversal CVSS 4.0MEDIUM 5.3
  • TI-2026-01489 bolo-blog bolo-solo Filename BackupService.java importFromMarkdown path traversal CVSS 4.0MEDIUM 5.3
  • TI-2026-01488 bolo-blog bolo-solo ZIP File BackupService.java unpackFilteredZip path traversal CVSS 4.0MEDIUM 5.3
  • TI-2026-01374 bolo-solo SnakeYAML BackupService.java importMarkdownsSync deserialization CVSS 4.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences