CVE-2023-27088: feiqu-opensource Background Vertical authorization vulnerability exists in IndexController.java

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HIGH 8.8MITIGATE

CVE-2023-27088 is a high-severity flaw (CVSS 8.8) affecting feiqu-opensource. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

feiqu-opensource Background Vertical authorization vulnerability exists in IndexController.java. demo users with low permission can perform operations within the permission of the admin super administrator and can use this vulnerability to change the blacklist IP address in the system at will.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.6% (top 51%)
CISA exploited list	No
Weakness	CWE-284
Published	2023-03-08
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: feiqu-opensource project

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

Am I affected?

Timeline

2023-03-08 16:15 UTCPublished CVE record published
2026-06-17 05:44 UTCUpdated Record last modified

feiqu-opensource project feiqu-opensource MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy feiqu-opensource || rpm -q feiqu-opensource || feiqu-opensource --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2023-27088?

feiqu-opensource: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-27088 being exploited?

CVE-2023-27088 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-2023-27088 affect?

CVE-2023-27088 affects feiqu-opensource. Severity is high (CVSS 8.8). feiqu-opensource Background Vertical authorization vulnerability exists in IndexController.java. demo users with low permission can perform operations within the permission of the admin super administrator and can use this vulnerability to

How urgent is CVE-2023-27088?

Priority 48/100. High severity; Public exploit reference

Software pages

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References

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