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CVE-2023-2783

Status: ModifiedMedium (4.3)—

Mattermost Apps Framework fails to verify that a secret provided in the incoming webhook request allowing an attacker to modify the contents of the post sent by the Apps.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Mattermost — Mattermost

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2023-2783",
  "cveTags": [],
  "metrics": {
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          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
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              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-12-06T22:51:33.782183Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "cvssData": {
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  "published": "2023-06-16T09:15:09.720",
  "references": [
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      "url": "https://mattermost.com/security-updates",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "responsibledisclosure@mattermost.com"
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      "url": "https://mattermost.com/security-updates",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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  "descriptions": [
    {
      "lang": "en",
      "value": "Mattermost Apps Framework fails to verify that a secret provided in the incoming webhook request allowing an attacker to modify the contents of the post sent by the Apps.\n\n"
    }
  ],
  "lastModified": "2026-06-17T05:53:25.863",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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}