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CVE-2026-14495— DoLogin Security <= 4.3 - Unauthenticated Authentication Bypass via Insufficient Randomness via 'dologin' Parameter Weak PRNG Token

Quick assessment

Affected
wpdo5ea DoLogin Security
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress DoLogin Security是WordPress基金会的一款安全软件的防病毒产品。 WordPress DoLogin Security 4.3及之前版本存在加密问题漏洞，该漏洞源于随机性不足，可能导致未经身份验证的攻击者暴力破解种子空间并绕过身份验证。

CVSS 8.8 · High EPSS 0.77% · P54

Affected Version Matrix 1

VendorProduct Version RangeStatus
wpdo5ea DoLogin Security ≤ 4.3 affected
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I. Basic Information for CVE-2026-14495

Vulnerability Information
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Vulnerability Title
DoLogin Security <= 4.3 - Unauthenticated Authentication Bypass via Insufficient Randomness via 'dologin' Parameter Weak PRNG Token
Source: CVE Program / CVE List V5
Vulnerability Description
The DoLogin Security plugin for WordPress is vulnerable to Authentication Bypass via Insufficient Randomness in all versions up to, and including, 4.3. The vulnerability exists because `dologin\s::rrand()` seeds the Mersenne Twister with `mt_srand((double) microtime() * 1000000)` — discarding the integer-seconds component of `microtime()` and constraining the seed to a range of approximately 10^6 values (~20 bits of entropy) — after which every character of the 32-character magic-link token is drawn sequentially with `mt_rand()`, making the entire token a deterministic function of that seed. Because `Pswdless::try_login()` is registered on the unauthenticated `init` hook, resolves the target account by the auto-increment numeric ID embedded in the `?dologin=<id>.<hash>` parameter, performs the hash comparison using a non-constant-time `!=` operator, and then calls `wp_set_auth_cookie()` directly — never passing through `wp_authenticate()` and therefore never triggering the plugin's own `Auth::_has_login_err()` lockout — an unauthenticated attacker can brute-force the ~10^6-candidate seed space to reconstruct an active passwordless login token and authenticate as any targeted user, including administrators, without a password. Exploitation requires that a valid, unexpired passwordless login link (active for up to 7 days) exists for the target account at the time of the attack, and that the numeric link ID is known or guessable from the auto-increment primary key.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用具有密码学弱点缺陷的PRNG
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress DoLogin Security 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress DoLogin Security是WordPress基金会的一款安全软件的防病毒产品。 WordPress DoLogin Security 4.3及之前版本存在加密问题漏洞，该漏洞源于随机性不足，可能导致未经身份验证的攻击者暴力破解种子空间并绕过身份验证。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
wpdo5ea DoLogin Security 0 ~ 4.3 -

II. Public POCs for CVE-2026-14495

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III. Intelligence Information for CVE-2026-14495

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Patches & Fixes for CVE-2026-14495 (3)

Vendor Advisories for CVE-2026-14495 (1)

IV. Related Vulnerabilities

Same product: DoLogin Security
Same weakness: CWE-338

V. Comments for CVE-2026-14495

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