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CVE-2021-26642

Status: ModifiedCritical (9.8)—

When uploading an image file to a bulletin board developed with XpressEngine, a vulnerability in which an arbitrary file can be uploaded due to insufficient verification of the file. A remote attacker can use this vulnerability to execute arbitrary code on the server where the bulletin board is running.

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)

Xpressengine — Xpressengine

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2021-26642",
  "cveTags": [],
  "metrics": {
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          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
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              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
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          "version": "2.0.3",
          "timestamp": "2025-04-02T15:40:36.668565Z"
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  "published": "2023-01-20T17:15:10.300",
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    },
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    }
  ],
  "lastModified": "2026-06-17T03:43:36.783",
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