CVE-2026-81807 (GCVE-0-2026-81807)

Vulnerability from cvelistv5 – Published: 2026-09-02 06:00 – Updated: 2026-09-02 06:00
VLAI
Title
Simple Ajax Chat < 20260827 - Unauthenticated Stored XSS via Chat Message Linkification
Summary
The Simple Ajax Chat WordPress plugin before 20260827 does not escape chat message content before rendering it, allowing unauthenticated users to inject arbitrary HTML attributes into the page and run scripts in the browser of anyone viewing the chat, including administrators.
Severity
No CVSS data available.
CWE
Assigner
References
URL Tags
https://wpscan.com/vulnerability/7aceefd5-aa09-48… exploitvdb-entrytechnical-description
Impacted products
Vendor Product Version CPE status
Unknown Simple Ajax Chat Affected: 0 , < 20260827 (semver)
guessed Create a notification for this product.
Credits
Erwan LR (WPScan) WPScan
Show details on NVD website
To clipboard 

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    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Simple Ajax Chat",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "20260827",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Erwan LR (WPScan)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "WPScan"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Simple Ajax Chat  WordPress plugin before 20260827 does not escape chat message content before rendering it, allowing unauthenticated users to inject arbitrary HTML attributes into the page and run scripts in the browser of anyone viewing the chat, including administrators."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-79 Cross-Site Scripting (XSS)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-02T06:00:23.747Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
      "references": [
        {
          "tags": [
            "exploit",
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://wpscan.com/vulnerability/7aceefd5-aa09-4828-b375-6a62997fa0c2/"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Simple Ajax Chat \u003c 20260827 - Unauthenticated Stored XSS via Chat Message Linkification",
      "x_generator": {
        "engine": "WPScan CVE Generator"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
    "cveId": "CVE-2026-81807",
    "datePublished": "2026-09-02T06:00:23.747Z",
    "dateReserved": "2026-08-27T12:27:55.970Z",
    "dateUpdated": "2026-09-02T06:00:23.747Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-81807\",\"sourceIdentifier\":\"contact@wpscan.com\",\"published\":\"2026-09-02T06:17:19.773\",\"lastModified\":\"2026-09-02T06:17:19.773\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The Simple Ajax Chat  WordPress plugin before 20260827 does not escape chat message content before rendering it, allowing unauthenticated users to inject arbitrary HTML attributes into the page and run scripts in the browser of anyone viewing the chat, including administrators.\"}],\"affected\":[{\"source\":\"contact@wpscan.com\",\"affectedData\":[{\"vendor\":\"Unknown\",\"product\":\"Simple Ajax Chat\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"20260827\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://wpscan.com/vulnerability/7aceefd5-aa09-4828-b375-6a62997fa0c2/\",\"source\":\"contact@wpscan.com\"}]}}"
  }
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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