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CVE-2026-92913— AVideo Weak PRNG Activation Code Authentication Bypass

Quick assessment

Affected
WWBN AVideo
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.

AVideo 在提交 c3edcc274c389816d434acadac07ee78eaf330c1 中，在生成账户激活/登录配对码时使用了密码学强度较弱的伪随机数生成器。 中的 完全基于 （即 ）推导码值，仅使用一个非加密安全随机数生成器（非CSPRNG）的 字符作为填充。这导致在已知生成秒数的情况下，可能的码值空间缩小为大约 36 × 10⁶（约 2²⁵）个值。 由于 可以在无需认证的情况下被调用，它还可以作为服务器精确微秒时间（microtime）的预言机（oracle）。一个未经认证的远程攻击者若能猜到一

CVSS 7.4 · High
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I. Basic Information for CVE-2026-92913

Vulnerability Information
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Vulnerability Title
AVideo Weak PRNG Activation Code Authentication Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 uses a cryptographically weak pseudo-random number generator when creating account activation / login pairing codes. getRandomCode() in objects/functions.php derives the code entirely from uniqid() (sprintf('%08x%05x', seconds, microseconds)) with a single non-CSPRNG rand() character used only as padding, reducing the code space to roughly 36 x 10^6 (~2^25) values for a known generation second. Because plugin/API/set.json.php?APIName=login_code can be called without authentication, it also serves as an oracle for the server's exact microtime. An unauthenticated remote attacker who guesses a valid, unexpired code (codes expire after 10 minutes) can redeem it at plugin/API/get.json.php?APIName=login_code to obtain the target account's email address and a User::getUserHash(users_id, '+1 year') value, a credential accepted in place of the account password for one year, resulting in account takeover. No patched version is available.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用不充分的随机数
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
WWBN AVideo 0 ~ c3edcc274c389816d434acadac07ee78eaf330c1 -

II. Public POCs for CVE-2026-92913

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III. Intelligence Information for CVE-2026-92913

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Vendor Advisories for CVE-2026-92913 (2)

Same Patch Batch · WWBN · 2026-09-17 · 4 CVEs total

CVE-2026-92914 8.1 HIGH AVideo LoginControl PGP Second Factor Authentication Bypass
CVE-2026-92915 7.3 HIGH WWBN AVideo userVerifyEmail.php Unauthenticated Access Control
CVE-2026-92912 6.5 MEDIUM AVideo Cryptographically Weak PRNG via uniqid Stream Key

IV. Related Vulnerabilities

Same product: AVideo
Same vendor: WWBN
Same weakness: CWE-330

V. Comments for CVE-2026-92913

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