How severe is CVE-2016-20001?

CVE-2016-20001 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-20001 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-20001?

CVE-2016-20001 affects Rest/json Project Rest/json. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-20001?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2016-20001 published?

CVE-2016-20001 was published on 2021-01-01 and last updated on 2026-06-17.

CVE-2016-20001

CVE-2016-20001 is a critical-severity vulnerability in Rest/json Project Rest/json with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Rest/json Project Rest/json
Published: 2021-01-01
Last modified: 2026-06-17

Description

The REST/JSON project 7.x-1.x for Drupal allows node access bypass, aka SA-CONTRIB-2016-033. NOTE: This project is not covered by Drupal's security advisory policy.

Frequently asked questions

What is CVE-2016-20001?: The REST/JSON project 7.x-1.x for Drupal allows node access bypass, aka SA-CONTRIB-2016-033. NOTE: This project is not covered by Drupal's security advisory policy.
How severe is CVE-2016-20001?: CVE-2016-20001 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-20001 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-20001?: CVE-2016-20001 affects Rest/json Project Rest/json. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-20001?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2016-20001 published?: CVE-2016-20001 was published on 2021-01-01 and last updated on 2026-06-17.

References

https://www.drupal.org/node/2744889

Affected products (1)

cpe:2.3:a:rest\/json_project:rest\/json:*:*:*:*:*:drupal:*:*

More vulnerabilities in Rest/json Project Rest/json

CVE-2016-20005 — Critical (CVSS 9.8): The REST/JSON project 7.x-1.x for Drupal allows user registration bypass, aka SA-CONTRIB-2016-033. NOTE: This project…
CVE-2016-20004 — Critical (CVSS 9.8): The REST/JSON project 7.x-1.x for Drupal allows field access bypass, aka SA-CONTRIB-2016-033. NOTE: This project is not…
CVE-2016-20002 — Critical (CVSS 9.8): The REST/JSON project 7.x-1.x for Drupal allows comment access bypass, aka SA-CONTRIB-2016-033. NOTE: This project is…
CVE-2016-20003 — High (CVSS 7.5): The REST/JSON project 7.x-1.x for Drupal allows user enumeration, aka SA-CONTRIB-2016-033. NOTE: This project is not…
CVE-2016-20008 — High (CVSS 7.5): The REST/JSON project 7.x-1.x for Drupal allows session enumeration, aka SA-CONTRIB-2016-033. NOTE: This project is not…
CVE-2016-20007 — High (CVSS 7.5): The REST/JSON project 7.x-1.x for Drupal allows session name guessing, aka SA-CONTRIB-2016-033. NOTE: This project is…

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