7.5

CVE-2026-77771: unknown miniorange 2fa Improper Authentication

CVSS: 7.5v3.1HighDeferred
Published 10-09-2026Last modified 10-09-2026
Open JSON

Vulnerability summary

CVE-2026-77771 is a high (CVSS 7.5) Improper Authentication vulnerability in unknown miniorange 2fa. EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 23.9% of scored vulnerabilities. 1 public exploit is recorded. Fixed in 19.3.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.32%
0%100%
Low · +0.13 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 10-09-2026
    PublishedVulnerability first disclosed.
  2. 10-09-2026
    Last modifiedVulnerability information updated.

Description

The miniOrange 2FA WordPress plugin before 6.3.1, miniOrange 2FA WordPress plugin before 19.3 does not scope its second-factor attempt limit to the account being attacked, keying it instead to an identifier the client supplies and can change at will, allowing an attacker who already knows a victim's password to make unlimited one-time-passcode guesses and defeat the second factor. A second validation endpoint applies no attempt limit at all.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.32%

Chance of exploitation in the next 30 days

Percentile

24%

Versus all other CVEs

30-day change

+0.13 pp

From 0.19% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.32%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (wpscan.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Unknown1 product
Wordpress1 product
  • miniorange-2-factor-authentication≥ 18.0, ≤ 19.2 (fixed in 19.3) | ≥ 6.2.8, ≤ 6.3.0 (fixed in 19.3)

2 vendors · 2 products

References

2 links