CVE-2025-6533 (GCVE-0-2025-6533)

Vulnerability from cvelistv5 – Published: 2025-06-24 00:00 – Updated: 2025-06-25 15:02
VLAI
Title
xxyopen/201206030 novel-plus CATCHA LoginController.java ajaxLogin authentication replay
Summary
A vulnerability, which was classified as critical, has been found in xxyopen/201206030 novel-plus up to 5.1.3. Affected by this issue is the function ajaxLogin of the file novel-admin/src/main/java/com/java2nb/system/controller/LoginController.java of the component CATCHA Handler. The manipulation leads to authentication bypass by capture-replay. The attack may be launched remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-25 14:53 UTC
CWE
  • CWE-294 - Authentication Bypass by Capture-replay
  • CWE-287 - Improper Authentication
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3855 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
xxyopen novel-plus Affected: 5.1.0
Affected: 5.1.1
Affected: 5.1.2
Affected: 5.1.3
guessed Create a notification for this product.
201206030 novel-plus Affected: 5.1.0
Affected: 5.1.1
Affected: 5.1.2
Affected: 5.1.3
guessed Create a notification for this product.
Show details on NVD website

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              "value": "Eine kritische Schwachstelle wurde in xxyopen/201206030 novel-plus bis 5.1.3 entdeckt. Dies betrifft die Funktion ajaxLogin der Datei novel-admin/src/main/java/com/java2nb/system/controller/LoginController.java der Komponente CATCHA Handler. Durch das Beeinflussen mit unbekannten Daten kann eine authentication bypass by capture-replay-Schwachstelle ausgenutzt werden. Der Angriff kann \u00fcber das Netzwerk passieren. Die Komplexit\u00e4t eines Angriffs ist eher hoch. Sie ist schwierig ausnutzbar. Der Exploit steht zur \u00f6ffentlichen Verf\u00fcgung."
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "baseScore": 6.3,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
                "version": "4.0"
              }
            },
            {
              "cvssV3_1": {
                "baseScore": 5.6,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R",
                "version": "3.1"
              }
            },
            {
              "cvssV3_0": {
                "baseScore": 5.6,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R",
                "version": "3.0"
              }
            },
            {
              "cvssV2_0": {
                "baseScore": 5.1,
                "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR",
                "version": "2.0"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-294",
                  "description": "Authentication Bypass by Capture-replay",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            },
            {
              "descriptions": [
                {
                  "cweId": "CWE-287",
                  "description": "Improper Authentication",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-06-24T00:00:12.882Z",
            "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
            "shortName": "VulDB"
          },
          "references": [
            {
              "name": "VDB-313652 | xxyopen/201206030 novel-plus CATCHA LoginController.java ajaxLogin authentication replay",
              "tags": [
                "vdb-entry",
                "technical-description"
              ],
              "url": "https://vuldb.com/?id.313652"
            },
            {
              "name": "VDB-313652 | CTI Indicators (IOB, IOC, TTP, IOA)",
              "tags": [
                "signature",
                "permissions-required"
              ],
              "url": "https://vuldb.com/?ctiid.313652"
            },
            {
              "name": "Submit #596481 | xxyopen novel-plus 5.1.3 Improper Restriction of Excessive Authentication Attempts",
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://vuldb.com/?submit.596481"
            },
            {
              "tags": [
                "related"
              ],
              "url": "https://blog.0xd00.com/blog/captcha-replay-attack-lead-to-brute-force-protection-bypass"
            },
            {
              "tags": [
                "exploit"
              ],
              "url": "https://blog.0xd00.com/blog/captcha-replay-attack-lead-to-brute-force-protection-bypass#poc"
            }
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2025-06-23T00:00:00.000Z",
              "value": "Advisory disclosed"
            },
            {
              "lang": "en",
              "time": "2025-06-23T02:00:00.000Z",
              "value": "VulDB entry created"
            },
            {
              "lang": "en",
              "time": "2025-06-23T16:37:35.000Z",
              "value": "VulDB entry last update"
            }
          ],
          "title": "xxyopen/201206030 novel-plus CATCHA LoginController.java ajaxLogin authentication replay"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "assignerShortName": "VulDB",
        "cveId": "CVE-2025-6533",
        "datePublished": "2025-06-24T00:00:12.882Z",
        "dateReserved": "2025-06-23T14:32:23.248Z",
        "dateUpdated": "2025-06-25T15:02:40.680Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.
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  • 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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How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.