{
  "affected": [
    {
      "affectedData": [
        {
          "product": "yeswiki",
          "vendor": "YesWiki",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 4.6.6"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "YesWiki is a wiki system written in PHP. Prior to version 4.6.6, YesWiki through the latest development branch contains a SQL injection vulnerability in ReactionManager::deleteUserReaction() that allows any authenticated user to inject arbitrary SQL via the {idreaction} and {id} URL path parameters. The parameters are concatenated directly into a SQL LIKE clause without escaping or parameterization. This issue has been patched in version 4.6.6."
    }
  ],
  "id": "CVE-2026-52775",
  "lastModified": "2026-09-05T00:17:20.520",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-09-05T00:17:20.520",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/YesWiki/yeswiki/commit/90ca54fb518e1c43a1ead6e4f5bf9f0389789841"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/YesWiki/yeswiki/releases/tag/v4.6.6"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/YesWiki/yeswiki/security/advisories/GHSA-4pf7-cc4r-g63h"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-89"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "yeswiki/yeswiki"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.6.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-52775"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-89"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-09T21:02:40Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "## Summary\n\nYesWiki through the latest development branch contains a SQL injection vulnerability in `ReactionManager::deleteUserReaction()` that allows any authenticated user to inject arbitrary SQL via the `{idreaction}` and `{id}` URL path parameters. The parameters are concatenated directly into a SQL LIKE clause without escaping or parameterization.\n\nThis is a sibling of CVE-2026-46670 (unauthenticated SQLi in `FormManager::create()`). Both share the same root cause \u2014 raw string concatenation into SQL queries \u2014 but exist in different components.\n\n## Root Cause\n\n`includes/controllers/ApiController.php` line 726:\n```php\n/**\n * @Route(\"/api/reactions/{idreaction}/{id}/{page}/{username}\", methods={\"DELETE\"}, options={\"acl\":{\"+\"}})\n */\n```\n\nACL `\"+\"` = any authenticated user. Parameters flow into `ReactionManager::deleteUserReaction()` \u2192 `TripleStore::delete()` with raw string concatenation into SQL LIKE clause (line 356).\n\nThe `if` branch (lines 340-354) properly uses `$this-\u003edbService-\u003eescape()`. The `else` branch does not \u2014 the developer applied escaping to one code path but not the other.\n\n## PoC\n\n```\nDELETE /wiki/?api/reactions/x%27%20OR%201=1%20OR%20value%20LIKE%20%27/test/SomePage/attacker\nHost: localhost:8085\nCookie: \u003csession cookie\u003e\n```\n\nTime-based blind variant via `{id}` parameter for data exfiltration.\n\n## Impact\n\nFull database read/write. Any self-registered user can extract `yeswiki_users` password hashes and emails.\n\n## Suggested Fix\n\nApply `$this-\u003edbService-\u003eescape()` to all parameters in the `else` branch, matching the `if` branch pattern. Also audit all `TripleStore::delete()` callers that pass `$extraSQL`.\n\n## Credits\n\nKai Aizen / SnailSploit",
  "id": "GHSA-4pf7-cc4r-g63h",
  "modified": "2026-07-09T21:02:41Z",
  "published": "2026-07-09T21:02:40Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/YesWiki/yeswiki/security/advisories/GHSA-4pf7-cc4r-g63h"
    },
    {
      "type": "WEB",
      "url": "https://github.com/YesWiki/yeswiki/commit/90ca54fb518e1c43a1ead6e4f5bf9f0389789841"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/YesWiki/yeswiki"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "YesWiki has Authenticated SQL Injection via ReactionManager "
}