CVE-2022-40037: An issue discovered in Rawchen blog-ssm v1.0 allows remote attacker to escalate privileges and execute arbitra

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2022-40037 is a critical-severity flaw (CVSS 9.8) affecting javaweb blog. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue discovered in Rawchen blog-ssm v1.0 allows remote attacker to escalate privileges and execute arbitrary commands via the component /upFile.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-434
Published	2023-01-26
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: javaweb blog project

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

Am I affected?

Timeline

2023-01-26 21:16 UTCPublished CVE record published
2026-06-17 05:00 UTCUpdated Record last modified

javaweb blog project javaweb blog DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy javaweb-blog || rpm -q javaweb-blog || javaweb-blog --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison javaweb-blog sudo apt install javaweb-blog=<VERSION_BEFORE_1.0> sudo apt-mark hold javaweb-blog

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list javaweb-blog sudo dnf downgrade javaweb-blog-<VERSION_BEFORE_1.0> sudo dnf versionlock add javaweb-blog

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2022-40037?

javaweb blog: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-40037 being exploited?

CVE-2022-40037 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-2022-40037 affect?

CVE-2022-40037 affects javaweb blog. Severity is critical (CVSS 9.8). An issue discovered in Rawchen blog-ssm v1.0 allows remote attacker to escalate privileges and execute arbitrary commands via the component /upFile.

How urgent is CVE-2022-40037?

Priority 63/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-40034 MEDIUM 5.4 DOWNGRADE Cross-Site Scripting (XSS) vulnerability found in Rawchen blog-ssm v1.0 allows attackers to execute arbitrary

References

← Back to latest CVEs