Security readout for executives and security teams
Plain-English summary
Browsershot 3.57.2 can be abused to make a server-side browser read local files when it renders attacker-influenced HTML. The main business risk is exposure of secrets, configuration files, or internal data from the host running the rendering job.
Executive priority
Treat as high priority where Browsershot renders customer-controlled or partner-controlled HTML. The impact is primarily confidentiality: local files on rendering hosts may be exposed. Prioritize inventory, input restrictions, and isolation while confirming vendor remediation.
Technical view
The CVE describes missing validation in HTML passed to Browsershot::html. HTML containing file-scheme URLs may be processed by the server-side browser, enabling arbitrary local file read. CVSS 3.1 is 8.2 high, with network attack vector, low complexity, no privileges, user interaction required, changed scope, high confidentiality impact, and low integrity impact.
Likely exposure
Exposure is most likely in applications using spatie/browsershot version 3.57.2 and rendering HTML that can be influenced by external users, customers, or integrated systems. Static internal-only rendering with trusted templates is lower risk, but still should be reviewed.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. The vulnerability is remotely triggerable under the CVSS assessment, but requires user interaction and a vulnerable application flow that passes unsafe HTML into Browsershot::html.
Researcher notes
The record names Browsershot 3.57.2 and package spatie/browsershot. The CWE is listed as CWE-79, but the described impact is local file read through server-side rendering of unsafe HTML. Sources do not identify a specific fixed version in the provided bundle.
Mitigation direction
- Inventory all deployments using spatie/browsershot and identify version 3.57.2.
- Do not pass untrusted HTML directly into Browsershot::html.
- Sanitize rendered HTML and block file-scheme URLs before rendering.
- Run rendering workers with minimal filesystem and secret access.
- Check Spatie and Fluid Attacks guidance for fixed versions or official remediation.
Validation and detection
- Check dependency manifests and lockfiles for spatie/browsershot 3.57.2.
- Review code paths where external content reaches Browsershot::html.
- Confirm sanitization rejects file-scheme URLs before rendering.
- Inspect rendering logs for unexpected local file reference patterns.
- Perform any security testing only in controlled non-production environments.
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.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2022-43983 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
- High
- CVSS
- 8.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
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:R/S:C/C:H/I:L/A:N2.84.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.2HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/spatie/browsershot/CVE reference
- https://fluidattacks.com/advisories/khalid/CVE reference
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.