CVE-2026-30689: In Blog.Core through bcb4d17, the getinfobytoken API interface contains improper access control that leads to

Routine

MEDIUM 4.3DOWNGRADE

CVE-2026-30689 is a medium-severity flaw (CVSS 4.3) affecting blog.admin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Blog.Core through bcb4d17, the getinfobytoken API interface contains improper access control that leads to sensitive data exposure. Unauthorized parties can obtain sensitive administrator account information via a valid token, threatening system security. NOTE: Blog.Admin is related front-end code that does not offer an API service.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-863, CWE-284
Published	2026-03-27
Last modified	2026-07-02

Publisher (CNA): MITRE · Vendor: anjoy8

Last updated 2026-07-02 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-27 15:16 UTCPublished CVE record published
2026-07-02 20:17 UTCUpdated Record last modified

anjoy8 blog.admin DOWNGRADE

Affected: 8.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0

1. Check installed version

apt-cache policy blog.admin || rpm -q blog.admin || blog.admin --version

2. No fixed release: DOWNGRADE to a release before 8.0 (Debian / Ubuntu)

apt-cache madison blog.admin sudo apt install blog.admin=<VERSION_BEFORE_8.0> sudo apt-mark hold blog.admin

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

dnf --showduplicates list blog.admin sudo dnf downgrade blog.admin-<VERSION_BEFORE_8.0> sudo dnf versionlock add blog.admin

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-2026-30689?

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

Is CVE-2026-30689 being exploited?

CVE-2026-30689 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-2026-30689 affect?

CVE-2026-30689 affects blog.admin. Severity is medium (CVSS 4.3). In Blog.Core through bcb4d17, the getinfobytoken API interface contains improper access control that leads to sensitive data exposure. Unauthorized parties can obtain sensitive administrator account information via a valid token, threatenin

How urgent is CVE-2026-30689?

Priority 25/100. Public exploit reference

References

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