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3 vulnerabilities found for Subscribe to Comments by Unknown

CVE-2026-91831 (GCVE-0-2026-91831)
Vulnerability from cvelistv5
Published
2026-10-19 06:46
Modified
2026-10-19 09:31
Severity ?
3.8 (Low) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
CWE
Summary
The Subscribe to Comments WordPress plugin before 2.3.3 does not sanitise newline characters from a notification sender-name setting before using it in e-mail headers, allowing users with Author-level access and above to inject arbitrary e-mail headers, such as a hidden Bcc, and to spoof the sender.
References
Impacted products
Vendor Product Version
Unknown Subscribe to Comments Version: 2.3   ≤
Create a notification for this product.
Show details on NVD website

To clipboard 

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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-19T09:25:57.636205Z",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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        {
          "collectionURL": "https://wordpress.org/plugins",
          "defaultStatus": "unaffected",
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            {
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      ],
      "credits": [
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          "type": "finder",
          "value": "Het Kalariya"
        },
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        }
      ],
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        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
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          "url": "https://wpscan.com/vulnerability/6cd60f78-f5e2-4b4a-8d50-7d2bc4f981ee/"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Subscribe to Comments 2.3 - 2.3.2 - Author+ Email Header Injection via From Name Setting",
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        "engine": "WPScan CVE Generator"
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    }
  },
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}

CVE-2026-91830 (GCVE-0-2026-91830)
Vulnerability from cvelistv5
Published
2026-10-16 06:00
Modified
2026-10-16 14:49
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE
Summary
The Subscribe to Comments WordPress plugin before 2.3.3 does not sign or validate a cookie it trusts to identify a commenter, allowing unauthenticated attackers to disclose a subscriber's management key and silently alter that subscriber's subscriptions.
References
Impacted products
Vendor Product Version
Unknown Subscribe to Comments Version: 0   ≤
Create a notification for this product.
Show details on NVD website

To clipboard 

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          "shortName": "CISA-ADP"
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              "status": "affected",
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      ],
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          "value": "Het Kalariya"
        },
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          "value": "WPScan"
        }
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      ],
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        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
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      },
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        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Subscribe to Comments \u003c 2.3.3 - Unauthenticated Subscription Management Key Disclosure via Forged Comment Cookie",
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        "engine": "WPScan CVE Generator"
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}

CVE-2026-91829 (GCVE-0-2026-91829)
Vulnerability from cvelistv5
Published
2026-10-11 06:00
Modified
2026-10-11 11:32
Severity ?
7.1 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
CWE
Summary
The Subscribe to Comments WordPress plugin before 2.3.3 does not properly validate a parameter before reflecting it into a link target, allowing unauthenticated attackers to perform Reflected Cross-Site Scripting via a crafted URL against anyone who clicks it, including administrators.
References
Impacted products
Vendor Product Version
Unknown Subscribe to Comments Version: 0   ≤
Create a notification for this product.
Show details on NVD website

To clipboard 

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              "attackVector": "NETWORK",
              "availabilityImpact": "LOW",
              "baseScore": 7.1,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "CHANGED",
              "userInteraction": "REQUIRED",
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              "version": "3.1"
            }
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                "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
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                "type": "CWE"
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          "dateUpdated": "2026-10-11T11:32:40.394Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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    ],
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          "type": "finder",
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        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
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      },
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      ],
      "source": {
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      },
      "title": "Subscribe to Comments \u003c 2.3.3 - Reflected XSS via \u0027ref\u0027 Parameter",
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        "engine": "WPScan CVE Generator"
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  },
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