Vulnerability-Lookup

CVE-2020-37255 (GCVE-0-2020-37255)

Vulnerability from cvelistv5 – Published: 2026-06-20 13:36 – Updated: 2026-07-15 01:24

Title

WordPress Time Capsule Plugin 1.21.16 Authentication Bypass

Summary

WordPress Time Capsule Plugin 1.21.16 contains an authentication bypass vulnerability that allows unauthenticated attackers to gain administrative access by sending a crafted POST request with the IWP_JSON_PREFIX header. Attackers can exploit this flaw to obtain valid administrator session cookies and access the WordPress dashboard without providing credentials.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-23 02:29 UTC

CWE

CWE-288 - Authentication Bypass Using an Alternate Path or Channel

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://www.exploit-db.com/exploits/47941	exploit
https://wptimecapsule.com/	product
https://www.vulncheck.com/advisories/wordpress-ti…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
Wptimecapsule	Time Capsule Plugin	Affected: 0 , ≤ 1.21.16 (semver) cpe:2.3:a:wptimecapsule:wp_time_capsule::::::wordpress::*

Date Public

2020-01-16 00:00

Credits

B. Canavate

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2020-37255

Vulnerability from fkie_nvd - Published: 2026-06-20 14:16 - Updated: 2026-06-23 04:17

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://wptimecapsule.com/
	disclosure@vulncheck.com	https://www.exploit-db.com/exploits/47941
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/wordpress-time-capsule-plugin-authentication-bypass

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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GHSA-4JWP-2G8R-6M99

Vulnerability from github – Published: 2026-06-20 15:32 – Updated: 2026-06-20 15:32

Details

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

8.7 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

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  "affected": [],
  "aliases": [
    "CVE-2020-37255"
  ],
  "database_specific": {
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      "CWE-288"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
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  },
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  "id": "GHSA-4jwp-2g8r-6m99",
  "modified": "2026-06-20T15:32:27Z",
  "published": "2026-06-20T15:32:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-37255"
    },
    {
      "type": "WEB",
      "url": "https://wptimecapsule.com"
    },
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    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/wordpress-time-capsule-plugin-authentication-bypass"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/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",
      "type": "CVSS_V4"
    }
  ]
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.

Action not permitted

CVE-2020-37255 (GCVE-0-2020-37255)

FKIE_CVE-2020-37255

GHSA-4JWP-2G8R-6M99

Tags

Sightings

Nomenclature

Related by attack behaviour