How severe is CVE-2020-27663?

CVE-2020-27663 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2020-27663 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-27663?

CVE-2020-27663 affects Glpi-project Glpi. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-27663?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-27663 published?

CVE-2020-27663 was published on 2020-11-26 and last updated on 2026-06-17.

CVE-2020-27663

CVE-2020-27663 is a medium-severity vulnerability in Glpi-project Glpi with a CVSS 3.x base score of 4.3. 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-639.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-639
Affected product: Glpi-project Glpi
Published: 2020-11-26
Last modified: 2026-06-17

Description

In GLPI before 9.5.3, ajax/getDropdownValue.php has an Insecure Direct Object Reference (IDOR) vulnerability that allows an attacker to read data from any itemType (e.g., Ticket, Users, etc.).

Frequently asked questions

What is CVE-2020-27663?: In GLPI before 9.5.3, ajax/getDropdownValue.php has an Insecure Direct Object Reference (IDOR) vulnerability that allows an attacker to read data from any itemType (e.g., Ticket, Users, etc.).
How severe is CVE-2020-27663?: CVE-2020-27663 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2020-27663 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-27663?: CVE-2020-27663 affects Glpi-project Glpi. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-27663?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-27663 published?: CVE-2020-27663 was published on 2020-11-26 and last updated on 2026-06-17.

References

https://github.com/glpi-project/glpi/security/advisories/GHSA-pqfv-4pvr-55r4

Affected products (1)

cpe:2.3:a:glpi-project:glpi:*:*:*:*:*:*:*:*

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