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CVE-2026-116072— Infinity for Reddit through 8.3.4 OAuth Login CSRF via LoginChromeCustomTabActivity

Quick assessment

Affected
Docile-Alligator Infinity for Reddit
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.

Infinity for Reddit 8.3.4 及更早版本存在登录跨站请求伪造（CSRF）漏洞。该漏洞允许攻击者将受害者登录到由攻击者控制的账户中，原因是其导出的 重定向处理器检查的是硬编码的 OAuth state 值。攻击者可使用其自身的 Reddit 账户授权该应用的客户端 ID，随后向受害者发送包含其授权码和固定 state 值的 重定向链接，导致受害者的发帖、消息收发及浏览行为均在攻击者的账户中执行。

CVSS 5.4 · Medium
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I. Basic Information for CVE-2026-116072

Vulnerability Information
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Vulnerability Title
Infinity for Reddit through 8.3.4 OAuth Login CSRF via LoginChromeCustomTabActivity
Source: CVE Program / CVE List V5
Vulnerability Description
Infinity for Reddit through 8.3.4 contains a login cross-site request forgery vulnerability that allows attackers to log victims into an attacker-controlled account because the exported LoginChromeCustomTabActivity redirect handler checks a hardcoded OAuth state value. Attackers can authorize the app's client ID with their own Reddit account, then deliver an infinity://localhost redirect containing their code and the constant state, causing the victim's posts, messages, and browsing to occur on the attacker's account.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨站请求伪造(CSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Docile-Alligator Infinity for Reddit 0 ~ 8.3.4 -

II. Public POCs for CVE-2026-116072

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-116072

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Patches & Fixes for CVE-2026-116072 (1)

Proof of Concept for CVE-2026-116072 (1)

Vendor Pages for CVE-2026-116072 (1)

Other References for CVE-2026-116072 (3)

IV. Related Vulnerabilities

Same weakness: CWE-352