Security readout for executives and security teams
Plain-English summary
CVE-2020-7700 is a critical prototype pollution issue in phpjs. The source bundle says all versions are vulnerable through parse_str. If an exposed application uses this function on attacker-controlled input, the flaw may let an attacker alter application behavior with high confidentiality, integrity, and availability impact.
Executive priority
Treat this as high-priority dependency risk because the reported impact is critical and all versions are marked affected. Urgency depends on whether phpjs is present in production and whether parse_str processes untrusted input.
Technical view
The vulnerability is prototype pollution in the JavaScript phpjs package via parse_str. CVSS 3.1 is 9.8 with network attack vector, low complexity, no privileges, and no user interaction. The sources do not provide CPEs, CWE mapping, exploit details, or a named fixed version.
Likely exposure
Exposure is likely in applications that include phpjs and call parse_str, especially where parsed input can come from users or external systems. The bundle marks all versions affected, so package inventory is the first exposure boundary.
Exploitation context
The CVE is not listed as KEV in the bundle, so active exploitation is not established here. The CVSS temporal vector includes proof-of-concept exploitability, but the provided sources do not include exploitation details or incident evidence.
Researcher notes
Evidence is narrow but clear on affected component and vulnerable function. Avoid assuming a patch, affected downstream products, or active exploitation from this bundle alone. Validate exposure through dependency and call-site review before assessing reachable impact.
Mitigation direction
- Inventory applications and lockfiles for phpjs usage.
- Identify all parse_str call sites handling external input.
- Check Snyk or vendor guidance for a supported remediation path.
- Remove or replace phpjs where no safe fixed version is available.
- Add dependency controls to prevent reintroduction.
Validation and detection
- Confirm whether phpjs appears in production dependency manifests.
- Trace whether parse_str receives user-controlled or third-party data.
- Review SCA findings for CVE-2020-7700 or SNYK-JS-PHPJS-598681.
- Prioritize internet-facing services before internal-only utilities.
- Document affected services and remediation decisions.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2020-7700 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: 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
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: 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
Source materials
- CVE List V5 sourceCVE List V5
- https://snyk.io/vuln/SNYK-JS-PHPJS-598681CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.