diff --git a/advisories/unreviewed/2026/05/GHSA-8x3j-439w-537c/GHSA-8x3j-439w-537c.json b/advisories/unreviewed/2026/05/GHSA-8x3j-439w-537c/GHSA-8x3j-439w-537c.json
index 7aed147c00f3e..69eb9550c7e35 100644
--- a/advisories/unreviewed/2026/05/GHSA-8x3j-439w-537c/GHSA-8x3j-439w-537c.json
+++ b/advisories/unreviewed/2026/05/GHSA-8x3j-439w-537c/GHSA-8x3j-439w-537c.json
@@ -1,24 +1,106 @@
 {
   "schema_version": "1.4.0",
   "id": "GHSA-8x3j-439w-537c",
-  "modified": "2026-05-19T12:31:39Z",
+  "modified": "2026-05-19T12:31:40Z",
   "published": "2026-05-19T12:31:39Z",
   "aliases": [
     "CVE-2026-46725"
   ],
+  "summary": "TYPO3 extension \"ceselector\" affected by Insecure Deserialization",
   "details": "The extension passes an attacker-controlled cookie directly to PHP's unserialize() without safely processing the input. A remote, unauthenticated attacker can supply a crafted serialized payload to trigger PHP Object Injection, leading to Remote Code Execution on the TYPO3 server. Exploitation requires the content element to be configured with \"Persistent Mode: Static\" in the plugin settings.",
   "severity": [
     {
       "type": "CVSS_V4",
-      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
+      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
+    }
+  ],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "Packagist",
+        "name": "mmc/ceselector"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "6.0.0"
+            },
+            {
+              "fixed": "6.0.1"
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "package": {
+        "ecosystem": "Packagist",
+        "name": "mmc/ceselector"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "5.0.0"
+            },
+            {
+              "fixed": "5.0.1"
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "package": {
+        "ecosystem": "Packagist",
+        "name": "mmc/ceselector"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "4.0.0"
+            },
+            {
+              "fixed": "4.0.2"
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "package": {
+        "ecosystem": "Packagist",
+        "name": "mmc/ceselector"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "3.0.3"
+            }
+          ]
+        }
+      ]
     }
   ],
-  "affected": [],
   "references": [
     {
       "type": "ADVISORY",
       "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46725"
     },
+    {
+      "type": "WEB",
+      "url": "https://bitbucket.org/thismaechler/typo3-ext-ceselector"
+    },
     {
       "type": "WEB",
       "url": "https://typo3.org/security/advisory/typo3-ext-sa-2026-013"