CVE-2026-1813: A vulnerability was found in bolo-blog bolo-solo up to 2.6.4

Q: How do I fix CVE-2026-1813?

bolo-solo: upgrade to newer than 2.6.4. Exact commands for each OS are on this page.

Q: Is CVE-2026-1813 being exploited?

CVE-2026-1813 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-1813 affect?

CVE-2026-1813 affects bolo-solo. Severity is medium (CVSS 6.3). 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 ar

Q: How urgent is CVE-2026-1813?

Priority 35/100. Public exploit reference

Routine

MEDIUM 6.3UPGRADE

CVE-2026-1813 is a medium-severity flaw (CVSS 6.3) affecting bolo-solo. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 repor

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 69%)
CISA exploited list	No
Weakness	CWE-284, CWE-434
Published	2026-02-04
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: adlered

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-04 00:16 UTCPublished CVE record published
2026-06-17 10:16 UTCUpdated Record last modified

adlered bolo-solo UPGRADE

Affected: <= 2.6.4

Fixed in: newer than 2.6.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy bolo-solo || rpm -q bolo-solo || bolo-solo --version

2. UPGRADE to newer than 2.6.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade bolo-solo

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade bolo-solo

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-1813?

bolo-solo: upgrade to newer than 2.6.4. Exact commands for each OS are on this page.

Is CVE-2026-1813 being exploited?

CVE-2026-1813 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-1813 affect?

CVE-2026-1813 affects bolo-solo. Severity is medium (CVSS 6.3). 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 ar

How urgent is CVE-2026-1813?

Priority 35/100. Public exploit reference

Software pages

Java vulnerabilities

Related CVEs

CVE-2026-1812 MEDIUM 6.3 UPGRADE A vulnerability has been found in bolo-blog bolo-solo up to 2.6.4
CVE-2026-1811 MEDIUM 6.3 UPGRADE A flaw has been found in bolo-blog bolo-solo up to 2.6.4
CVE-2026-1810 MEDIUM 6.3 UPGRADE A vulnerability was detected in bolo-blog bolo-solo up to 2.6.4

References

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