CVE-2026-109174: Auth Bypass (CVSS 6.5)

Description

MoguBlog through 6.2 contains an information disclosure vulnerability that allows low-privileged front-end users to read system credentials via the getSystemConfig endpoint. Attackers can supply an ordinary reader session token to retrieve unfiltered SystemConfig data, exposing Qiniu and MinIO secret keys and SMTP mailbox passwords.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploit Prediction

0.0024

Probability of exploitation

0.13%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-863 Incorrect Authorization

References

Other References

https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/mogu_blog_v2/poc_oauth_getSystemConfig.py https://github.com/moxi624/mogu_blog_v2/blob/025d78c7ac7e19b1abf796fa3cc158d855723d15/mogu_web/src/main/java/com/moxi/mogublog/web/restapi/AuthRestApi.java#L490-L502 https://www.vulncheck.com/advisories/mogublog-through-6.2-credential-disclosure-via-oauth-getsystemconfig

Frequently Asked Questions

What is CVE-2026-109174? +

MoguBlog through 6.2 contains an information disclosure vulnerability that allows low-privileged front-end users to read system credentials via the getSystemConfig endpoint. Attackers can supply an ordinary reader session token to retrieve unfiltered SystemConfig data, exposing Qiniu and MinIO secret keys and SMTP mailbox passwords. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-109174? +

CVE-2026-109174 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0024, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-109174? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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