CVE-2026-8878 (GCVE-0-2026-8878)

Vulnerability from cvelistv5 – Published: 2026-06-03 18:09 – Updated: 2026-06-03 18:09
VLAI
Title
CVE-2026-8878
Summary
Version 3.0.7 of the Securly Chrome Extension exposes multiple publicly accessible endpoints that allow unauthenticated access to sensitive data. The exposed information consists of SHA-1 hashes that are inadequately obfuscated using a simple Caesar cipher, which can be easily reversed to recover the original hash values and access the protected data.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
Securly Securly Chrome Extension Affected: 0 , ≤ 3.0.7 (custom)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "Securly Chrome Extension",
          "vendor": "Securly",
          "versions": [
            {
              "lessThanOrEqual": "3.0.7",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Version 3.0.7 of the Securly Chrome Extension exposes multiple publicly accessible endpoints that allow unauthenticated access to sensitive data. The exposed information consists of SHA-1 hashes that are inadequately obfuscated using a simple Caesar cipher, which can be easily reversed to recover the original hash values and access the protected data."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-922 Insecure Storage of Sensitive Information",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-03T18:09:04.115Z",
        "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "shortName": "certcc"
      },
      "references": [
        {
          "url": "https://kb.cert.org/vuls/id/595768"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "CVE-2026-8878",
      "x_generator": {
        "engine": "VINCE 3.0.42",
        "env": "prod",
        "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-8878"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
    "assignerShortName": "certcc",
    "cveId": "CVE-2026-8878",
    "datePublished": "2026-06-03T18:09:04.115Z",
    "dateReserved": "2026-05-18T20:27:44.651Z",
    "dateUpdated": "2026-06-03T18:09:04.115Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-8878\",\"sourceIdentifier\":\"cret@cert.org\",\"published\":\"2026-06-03T19:16:39.387\",\"lastModified\":\"2026-06-03T19:16:39.387\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Version 3.0.7 of the Securly Chrome Extension exposes multiple publicly accessible endpoints that allow unauthenticated access to sensitive data. The exposed information consists of SHA-1 hashes that are inadequately obfuscated using a simple Caesar cipher, which can be easily reversed to recover the original hash values and access the protected data.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://kb.cert.org/vuls/id/595768\",\"source\":\"cret@cert.org\"}]}}"
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.