CVE-2026-41513 (GCVE-0-2026-41513)

Vulnerability from cvelistv5 – Published: 2026-05-12 16:43 – Updated: 2026-05-13 12:43
VLAI
Title
Horilla: Open Redirect via Unvalidated `next` Parameter in Notification Endpoints
Summary
Horilla is an HR and CRM software. In 1.5.0, the notification endpoints trust the unvalidated next parameter and redirect users to arbitrary external URLs. This allows an attacker to turn trusted application links into phishing or social-engineering redirects.
Severity
4.8 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CWE
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
Impacted products
Vendor Product Version
horilla horilla-hr Affected: <= 1.5.0
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-41513",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-13T12:42:34.845938Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-13T12:43:21.433Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/horilla/horilla-hr/security/advisories/GHSA-vqg4-fc32-cwvw"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "horilla-hr",
          "vendor": "horilla",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 1.5.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Horilla is an HR and CRM software. In 1.5.0, the notification endpoints trust the unvalidated next parameter and redirect users to arbitrary external URLs. This allows an attacker to turn trusted application links into phishing or social-engineering redirects."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "ACTIVE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-601",
              "description": "CWE-601: URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-12T16:43:50.706Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/horilla/horilla-hr/security/advisories/GHSA-vqg4-fc32-cwvw",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/horilla/horilla-hr/security/advisories/GHSA-vqg4-fc32-cwvw"
        },
        {
          "name": "https://github.com/horilla/horilla-hr/commit/734f0c7ed4ac96fe8615d1b592180ea8a46eb8b6",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/horilla/horilla-hr/commit/734f0c7ed4ac96fe8615d1b592180ea8a46eb8b6"
        }
      ],
      "source": {
        "advisory": "GHSA-vqg4-fc32-cwvw",
        "discovery": "UNKNOWN"
      },
      "title": "Horilla: Open Redirect via Unvalidated `next` Parameter in Notification Endpoints"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-41513",
    "datePublished": "2026-05-12T16:43:50.706Z",
    "dateReserved": "2026-04-20T18:18:50.681Z",
    "dateUpdated": "2026-05-13T12:43:21.433Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-41513",
      "date": "2026-05-27",
      "epss": "0.00043",
      "percentile": "0.13403"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-41513\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-05-12T18:17:22.697\",\"lastModified\":\"2026-05-13T16:10:57.817\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Horilla is an HR and CRM software. In 1.5.0, the notification endpoints trust the unvalidated next parameter and redirect users to arbitrary external URLs. This allows an attacker to turn trusted application links into phishing or social-engineering redirects.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/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\",\"baseScore\":4.8,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"ACTIVE\",\"vulnConfidentialityImpact\":\"NONE\",\"vulnIntegrityImpact\":\"NONE\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"LOW\",\"subIntegrityImpact\":\"LOW\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-601\"}]}],\"references\":[{\"url\":\"https://github.com/horilla/horilla-hr/commit/734f0c7ed4ac96fe8615d1b592180ea8a46eb8b6\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/horilla/horilla-hr/security/advisories/GHSA-vqg4-fc32-cwvw\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/horilla/horilla-hr/security/advisories/GHSA-vqg4-fc32-cwvw\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-41513\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-05-13T12:42:34.845938Z\"}}}], \"references\": [{\"url\": \"https://github.com/horilla/horilla-hr/security/advisories/GHSA-vqg4-fc32-cwvw\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-05-13T12:42:04.687Z\"}}], \"cna\": {\"title\": \"Horilla: Open Redirect via Unvalidated `next` Parameter in Notification Endpoints\", \"source\": {\"advisory\": \"GHSA-vqg4-fc32-cwvw\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 4.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N\", \"userInteraction\": \"ACTIVE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"LOW\", \"subIntegrityImpact\": \"LOW\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"LOW\", \"vulnConfidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"horilla\", \"product\": \"horilla-hr\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c= 1.5.0\"}]}], \"references\": [{\"url\": \"https://github.com/horilla/horilla-hr/security/advisories/GHSA-vqg4-fc32-cwvw\", \"name\": \"https://github.com/horilla/horilla-hr/security/advisories/GHSA-vqg4-fc32-cwvw\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/horilla/horilla-hr/commit/734f0c7ed4ac96fe8615d1b592180ea8a46eb8b6\", \"name\": \"https://github.com/horilla/horilla-hr/commit/734f0c7ed4ac96fe8615d1b592180ea8a46eb8b6\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Horilla is an HR and CRM software. In 1.5.0, the notification endpoints trust the unvalidated next parameter and redirect users to arbitrary external URLs. This allows an attacker to turn trusted application links into phishing or social-engineering redirects.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-601\", \"description\": \"CWE-601: URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-05-12T16:43:50.706Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-41513\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-13T12:43:21.433Z\", \"dateReserved\": \"2026-04-20T18:18:50.681Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-05-12T16:43:50.706Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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

Author Source Type Date Other

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.