CVE-2021-46085: OneBlog <= 2.2.8 is vulnerable to Insecure Permissions

Q: How do I fix CVE-2021-46085?

oneblog: upgrade to newer than 2.2.8. Exact commands for each OS are on this page.

Q: Is CVE-2021-46085 being exploited?

CVE-2021-46085 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-2021-46085 affect?

CVE-2021-46085 affects oneblog. Severity is medium (CVSS 6.5). OneBlog <= 2.2.8 is vulnerable to Insecure Permissions. Low level administrators can delete high-level administrators beyond their authority.

Q: How urgent is CVE-2021-46085?

Priority 41/100. Public exploit reference

This month

MEDIUM 6.5UPGRADE

CVE-2021-46085 is a medium-severity flaw (CVSS 6.5) affecting oneblog. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OneBlog <= 2.2.8 is vulnerable to Insecure Permissions. Low level administrators can delete high-level administrators beyond their authority.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-276
Published	2022-01-25
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: oneblog project

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

Am I affected?

Timeline

2022-01-25 16:15 UTCPublished CVE record published
2026-06-17 04:14 UTCUpdated Record last modified

oneblog project oneblog UPGRADE

Affected: <= 2.2.8

Fixed in: newer than 2.2.8

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy oneblog || rpm -q oneblog || oneblog --version

2. UPGRADE to newer than 2.2.8 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade oneblog

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade oneblog

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-2021-46085?

oneblog: upgrade to newer than 2.2.8. Exact commands for each OS are on this page.

Is CVE-2021-46085 being exploited?

CVE-2021-46085 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-2021-46085 affect?

CVE-2021-46085 affects oneblog. Severity is medium (CVSS 6.5). OneBlog <= 2.2.8 is vulnerable to Insecure Permissions. Low level administrators can delete high-level administrators beyond their authority.

How urgent is CVE-2021-46085?

Priority 41/100. Public exploit reference

Related CVEs

CVE-2025-60355 CRITICAL 9.8 UPGRADE zhangyd-c OneBlog v2.3.9 and before was vulnerable to SSTI (Server-Side Template Injection) via FreeMarker tem
CVE-2025-56264 HIGH 7.5 DOWNGRADE The /api/comment endpoint in zhangyd-c OneBlog 2.3.9 contains a denial-of-service vulnerability.
CVE-2025-2835 MEDIUM 4.3 UPGRADE A vulnerability was found in zhangyd-c OneBlog up to 2.3.9
CVE-2025-2833 MEDIUM 5.3 UPGRADE A vulnerability was found in zhangyd-c OneBlog up to 2.3.9
CVE-2024-54954 HIGH 8.0 UPGRADE OneBlog v2.3.6 was discovered to contain a template injection vulnerability via the template management depart

References

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