CVE-2020-36388
In CiviCRM before 5.21.3 and 5.22.x through 5.24.x before 5.24.3, users may be able to upload and...
CVE-2020-36388 is a high vulnerability (CVSS 8.8) in Civicrm, published June 17, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.44%, the 73rd percentile. Fixed in civicrm 5.21.3.
- Severity
- 8.8 HighCVSS 3.1, NVD
- Exploit chance
- 1.44%EPSS, 73rd percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
5.21.3civicrm +4 more
Description
In CiviCRM before 5.21.3 and 5.22.x through 5.24.x before 5.24.3, users may be able to upload and execute a crafted PHAR archive.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
civicrmBitnami | before 5.21.3, 5.22.0 up to 5.24.3 | 5.21.35.24.3 |
civicrmDebian:11 | before 5.24.5+dfsg1-1 | 5.24.5+dfsg1-1 |
civicrmUbuntu:Pro:16.04:LTS | All versions, plus listed versions 4.7.1+dfsg-14.7.1+dfsg-24.7.1+dfsg-2ubuntu14.7.1+dfsg-2ubuntu1+esm1 | None known |
civicrmUbuntu:Pro:18.04:LTS | All versions, plus listed versions 4.7.23+dfsg-1ubuntu14.7.24+dfsg-1ubuntu14.7.30+dfsg-1ubuntu14.7.30+dfsg-1ubuntu1+esm1 | None known |
civicrmUbuntu:Pro:20.04:LTS | All versions, plus listed versions 5.11.0+dfsg-15.18.1+dfsg-15.20.3+dfsg-15.21.0+dfsg-15.21.1+dfsg-15.21.2+dfsg-15.21.2+dfsg-1ubuntu0.1~esm1 | None known |
What each source reports
NVD Score used
In CiviCRM before 5.21.3 and 5.22.x through 5.24.x before 5.24.3, users may be able to upload and execute a crafted PHAR archive.
- Record
CVE-2020-36388- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-434
- Updated
- 2026-11-02
CVE ListNo score
In CiviCRM before 5.21.3 and 5.22.x through 5.24.x before 5.24.3, users may be able to upload and execute a crafted PHAR archive.
- Record
CVE-2020-36388- Updated
- 2026-11-02
EUVDEUVD-2020-23919No score
In CiviCRM before 5.21.3 and 5.22.x through 5.24.x before 5.24.3, users may be able to upload and execute a crafted PHAR archive.
- Record
EUVD-2020-23919- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rqh9-9xqh-854h
In CiviCRM before 5.21.3 and 5.22.x through 5.24.x before 5.24.3, users may be able to upload and...
In CiviCRM before 5.21.3 and 5.22.x through 5.24.x before 5.24.3, users may be able to upload and execute a crafted PHAR archive.
- Record
GHSA-rqh9-9xqh-854h- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
OSV
In CiviCRM before 5.21.3 and 5.22.x through 5.24.x before 5.24.3, users may be able to upload and execute a crafted PHAR archive.
- Record
CVE-2020-36388- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2020-36388
In CiviCRM before 5.21.3 and 5.22.x through 5.24.x before 5.24.3, users may be able to upload and execute a crafted PHAR archive.
- Record
DEBIAN-CVE-2020-36388- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-36388
In CiviCRM before 5.21.3 and 5.22.x through 5.24.x before 5.24.3, users may be able to upload and execute a crafted PHAR archive.
- Record
UBUNTU-CVE-2020-36388- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVBIT-civicrm-2020-36388No score
In CiviCRM before 5.21.3 and 5.22.x through 5.24.x before 5.24.3, users may be able to upload and execute a crafted PHAR archive.
- Record
BIT-civicrm-2020-36388- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
civicrm.org/advisory/civi-sa-2020-03
blog.sonarsource.com/civicrm-code-execution-vulnerability-chain-explained
nvd.nist.gov/vuln/detail/CVE-2020-36388
github.com/advisories/GHSA-rqh9-9xqh-854h
security-tracker.debian.org/tracker/CVE-2020-36388
ubuntu.com/security/CVE-2020-36388
cve.org/CVERecord?id=CVE-2020-36388