# CVE-2026-52770: YesWiki SQL injection in Bazar entry-listing APIs

Source: https://junglewise.ai/threats/cve-2026-52770-yeswiki-sql-injection-in-bazar-entry-listing-apis  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-05. Updated: 2026-07-09  
License: CC BY 4.0 with a link back

CVE-2026-52770 · Severity: high · CVSS 7.5 · Published 2026-09-05

YesWiki, a collaborative wiki platform, contains a security flaw in its Bazar entry-listing component. An unauthenticated attacker can exploit this to extract sensitive information from the database, such as user account details and password hashes. This occurs because the system does not properly validate numeric search filters, allowing malicious database commands to be executed.

Technologies: [yeswiki/yeswiki (Packagist)](https://junglewise.ai/threats/technologies/yeswiki-yeswiki), [YesWiki](https://junglewise.ai/threats/technologies/yeswiki). Vendors: [Packagist](https://junglewise.ai/threats/vendors/packagist), [YesWiki](https://junglewise.ai/threats/vendors/yeswiki).

## Quick answers

**Is CVE-2026-52770 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-52770 being exploited in the wild.

**How severe is CVE-2026-52770?** High severity, with a CVSS score of 7.5, published 5 September 2026.

**Which products and versions are affected?** yeswiki/yeswiki (Packagist) < 4.6.6, ECOSYSTEM:introduced=0,fixed=4.6.6; YesWiki < 4.6.6.

**Is there a fix for CVE-2026-52770?** Yes. yeswiki/yeswiki (Packagist): upgrade to 4.6.6 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-52770 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-52770?** Check whether you run yeswiki/yeswiki (Packagist) or YesWiki at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- yeswiki/yeswiki (Packagist): upgrade to 4.6.6 or later

  ```sh
  composer require yeswiki/yeswiki:^4.6.6
  ```


## Technical details

An unauthenticated SQL injection vulnerability exists in YesWiki's Bazar API due to improper handling of numeric filters in `SearchManager::buildQueriesConditions()`. While the application uses `mysqli_real_escape_string` on input values, it fails to quote these values or perform numeric validation when they are part of a 'number' type field. This allows an attacker to append SQL syntax (e.g., using 'OR') to the numeric expression. By sending crafted GET requests to public routes like `/api/entries/bazarlist`, an attacker can perform boolean-based inference to extract sensitive data from the database. The vulnerability is patched in version 4.6.6.

## Affected products

- yeswiki yeswiki < 4.6.6

## Identifiers

- CVE-2026-52770
- GHSA-qg78-vmvc-fhjw

## Timeline

- 2026-06-02: disclosed: Initial disclosure on GitHub
- 2026-07-09: advisory: Advisory published and updated

## References

- [https://api.github.com/users/sondt99](https://api.github.com/users/sondt99)
- [https://github.com/sondt99](https://github.com/sondt99)
- [https://api.github.com/users/sondt99/gists%7B/gist_id%7D](https://api.github.com/users/sondt99/gists%7B/gist_id%7D)
- [https://api.github.com/users/sondt99/repos](https://api.github.com/users/sondt99/repos)
- [https://avatars.githubusercontent.com/u/87920408?v=4](https://avatars.githubusercontent.com/u/87920408?v=4)
- [https://api.github.com/users/sondt99/events%7B/privacy%7D](https://api.github.com/users/sondt99/events%7B/privacy%7D)

## Related threats

- [YesWiki SQL injection in despam.php INTERVAL operand](https://junglewise.ai/threats/cve-2026-116828-yeswiki-before-4-7-0-contains-a-sql-injection-vulnerability-in)
- [YesWiki server-side request forgery in Bazar CSV import](https://junglewise.ai/threats/cve-2026-116827-yeswiki-before-4-7-0-contains-a-server-side-request-forgery)
- [YesWiki server-side request forgery in DuplicationManager](https://junglewise.ai/threats/cve-2026-116826-yeswiki-before-4-7-0-contains-a-server-side-request-forgery)
- [YesWiki HTTP Signature replay protection missing in ActivityPub inbox](https://junglewise.ai/threats/cve-2026-116825-yeswiki-from-4-6-2-before-4-7-0-lacks-replay-protection-in)
- [YesWiki stored cross-site scripting in referrers_sites handler](https://junglewise.ai/threats/cve-2026-116824-yeswiki-before-4-7-0-contains-a-stored-cross-site-scripting)