CVE-2020-7700
Prototype Pollution
All versions of phpjs are vulnerable to Prototype Pollution via parse_str.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Prototype Pollution
All versions of phpjs are vulnerable to Prototype Pollution via parse_str.
- Record
CVE-2020-7700- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-1131
All versions of phpjs are vulnerable to Prototype Pollution via parse_str.
- Record
EUVD-2021-1131- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-m428-jqc4-2p5j
Prototype Pollution in phpjs
All versions of phpjs up to and including 1.3.2 are vulnerable to Prototype Pollution via parse_str. phpjs is no longer maintained and users are advised to use Locutus as a replacement (https://github.com/locutusjs/locutus)
- Record
GHSA-m428-jqc4-2p5j- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321
- Updated
- 2026-11-02
NVD
All versions of phpjs are vulnerable to Prototype Pollution via parse_str.
- Record
CVE-2020-7700- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-1321
- Updated
- 2026-11-02
OSVGHSA-m428-jqc4-2p5j
Prototype Pollution in phpjs
All versions of phpjs up to and including 1.3.2 are vulnerable to Prototype Pollution via parse_str. phpjs is no longer maintained and users are advised to use Locutus as a replacement (https://github.com/locutusjs/locutus)
- Record
GHSA-m428-jqc4-2p5j- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
phpjsnpm |
through 1.3.2 | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-7700 is a critical vulnerability (CVSS 9.8) in Php.js Project Php.js, published August 14, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.92%, the 80th percentile. No source names a fixed version.