CVE-2026-116828— YesWiki before 4.7.0 SQL Injection via despam.php INTERVAL operand

Quick assessment

Affected

YesWiki yeswiki

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.

YesWiki 4.7.0 之前的版本在文件中存在 SQL 注入漏洞。虽然参数经过了转义处理，但被放置在了未加引号的位置。已认证的管理员可通过 POST 请求中的参数注入 SQL 语句，从而执行数据库盲读操作，获取包括用户密码哈希在内的敏感数据。

CVSS 4.9 · Medium Updated Oct 27, 2026

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

YesWiki before 4.7.0 SQL Injection via despam.php INTERVAL operand

Source: CVE Program / CVE List V5

Vulnerability Description

YesWiki before 4.7.0 contains a sql injection vulnerability in despam.php where the from parameter is escaped but placed in an unquoted INTERVAL position. Authenticated administrators can inject SQL via the from POST parameter to perform blind reads of the database including user password hashes.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

SQL命令中使用的特殊元素转义处理不恰当(SQL注入)

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
YesWiki	yeswiki	0 ~ 4.7.0	-

II. Public POCs for CVE-2026-116828

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-116828

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Other References for CVE-2026-116828 (2)

https://github.com/YesWiki/yeswiki/security/advisories/GHSA-w7cp-76pj-w4m5 vendor-advisory
https://www.vulncheck.com/advisories/yeswiki-before-4.7.0-sql-injection-via-despam-php-interval-operand third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-116828

Same Patch Batch · YesWiki · 2026-10-26 · 9 CVEs total

CVE-2026-116827	6.8 MEDIUM	YesWiki before 4.7.0 SSRF via copyUrlToLocalFile in Bazar CSV Import
CVE-2026-116826	6.8 MEDIUM	YesWiki before 4.7.0 Authenticated SSRF via Page Duplication API downloadFile
CVE-2026-116821	6.5 MEDIUM	YesWiki before 4.7.0 Read-ACL Bypass via SQL LIKE Wildcards in Usernames
CVE-2026-116825	6.5 MEDIUM	YesWiki from 4.6.2 before 4.7.0 HTTP Signature Replay via ActivityPub Inbox
CVE-2026-116823	6.1 MEDIUM	YesWiki before 4.7.0 Reflected XSS via BazarField $_REQUEST Fallback
CVE-2026-116824	6.1 MEDIUM	YesWiki before 4.7.0 Stored XSS via Referer Header in referrers_sites Handler
CVE-2026-116822	5.3 MEDIUM	YesWiki before 4.7.0 Template Traversal via BazarListeAction template Parameter
CVE-2026-116820	5.3 MEDIUM	YesWiki from 4.6.0 before 4.7.0 SQL Query Disclosure via showreq Parameter

IV. Related Vulnerabilities

Same product: yeswiki

Same vendor: YesWiki

Same weakness: CWE-89