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7 vulnerabilities found for PlaywrightCapture by Lookyloo
CVE-2026-73210 (GCVE-0-2026-73210)
Vulnerability from nvd – Published: 2026-08-11 13:59 – Updated: 2026-08-12 18:36
VLAI
EPSS
VEX
Title
Server-Side Request Forgery via Favicon Retrieval in Lookyloo PlaywrightCapture
Summary
A Server-Side Request Forgery (SSRF) vulnerability existed in Lookyloo's PlaywrightCapture when the only_global_lookup option was enabled.
PlaywrightCapture implements this option to prevent captures from accessing local, loopback, or otherwise non-public network resources. However, favicon retrieval was performed separately from the browser request-routing protections. Favicon URLs extracted from rendered HTML were resolved and subsequently fetched directly using an aiohttp.ClientSession.
An attacker able to supply or control a web page processed by PlaywrightCapture could include a crafted favicon reference, for example pointing to a loopback address, private IP address, or another resource reachable only from the PlaywrightCapture host. When the page was processed, the favicon retrieval routine could issue an HTTP request to this destination despite only_global_lookup being enabled.
This bypass could therefore be used to make the PlaywrightCapture host interact with internal network services that should not be reachable through a capture. Depending on the targeted service and its response, this could enable internal service discovery, access to internal resources, or interaction with HTTP endpoints available only from the capture infrastructure.
The patch introduces a common URL validation routine and applies it to favicon retrieval. Direct non-global IP addresses, localhost, .local domains, malformed URLs, and other explicitly non-public destinations are rejected before the favicon request is performed.
This fix is a complementary fix to CVE-2026-44439 - GCVE-0-2026-44439 - GHSA-687H-XW6F-Q2QW
Severity
SSVC
Automatable: Yes
Exploitation: None
Technical Impact: Partial
Value Density: Diffused
CIRCL (v2.0)
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 18:36 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Lookyloo/PlaywrightCapture/com… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Lookyloo | PlaywrightCapture |
Affected:
0 , < 1.40.6
(semver)
|
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CVE-2026-63175 (GCVE-0-2026-63175)
Vulnerability from nvd – Published: 2026-07-15 21:26 – Updated: 2026-07-16 12:51
VLAI
EPSS
VEX
Title
Cross-Capture Session Data Leakage Due to Shared Mutable State in Looklyloo - PlaywrightCapture
Summary
PlaywrightCapture stored capture-specific configuration and runtime data as mutable class-level variables rather than instance-level variables. Consequently, multiple Capture objects running within the same Python process could share state, including HTTP headers, cookies, browser storage, HTTP credentials, proxy configuration, user-agent settings, geolocation information, and captured request data.
In a multi-user or concurrent deployment, information supplied during one capture could therefore persist and be reused by a subsequent or parallel capture. This could result in the disclosure of authentication cookies, credentials, browser storage, or captured request data belonging to another user. It could also cause requests to be performed with another capture's authentication context, headers, or proxy configuration, potentially enabling unauthorized access to remote resources or interference with other capture operations.
The vulnerability is resolved by initializing all capture-specific settings and request data as instance variables in the Capture constructor, ensuring that state is isolated between capture operations.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-16 12:51 UTC
CWE
- CWE-613 - Insufficient Session Expiration
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Lookyloo/PlaywrightCapture/com… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Lookyloo | PlaywrightCapture |
Affected:
0 , ≤ v1.40.2
(semver)
|
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CVE-2026-44439 (GCVE-0-2026-44439)
Vulnerability from nvd – Published: 2026-05-13 21:29 – Updated: 2026-05-15 18:01
VLAI
EPSS
VEX
Title
LookyLoo - PlaywrightCapture permits access to local files and internal network resources during page capture
Summary
PlaywrightCapture is a simple replacement for splash using playwright. Prior to 1.39.6, PlaywrightCapture did not sufficiently restrict navigations and resource requests initiated by rendered pages. An attacker-controlled page could abuse browser-side redirection mechanisms, such as window.location.href, to make the capture process open file:// URLs or request resources hosted on private, loopback, link-local, or otherwise non-public IP addresses. In deployments where PlaywrightCapture processes untrusted URLs, this could allow a remote attacker to perform server-side request forgery against internal services or attempt to access local files from the capture environment. Depending on what capture artifacts are generated and exposed, responses from those resources could potentially be leaked through screenshots, saved page content, logs, or other capture outputs. This vulnerability is fixed in 1.39.6.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-15 18:00 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/Lookyloo/PlaywrightCapture/sec… | x_refsource_CONFIRM |
| https://github.com/Lookyloo/PlaywrightCapture/com… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Lookyloo | PlaywrightCapture |
Affected:
< 1.39.6
|
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CVE-2026-73210 (GCVE-0-2026-73210)
Vulnerability from cvelistv5 – Published: 2026-08-11 13:59 – Updated: 2026-08-12 18:36
VLAI
EPSS
VEX
Title
Server-Side Request Forgery via Favicon Retrieval in Lookyloo PlaywrightCapture
Summary
A Server-Side Request Forgery (SSRF) vulnerability existed in Lookyloo's PlaywrightCapture when the only_global_lookup option was enabled.
PlaywrightCapture implements this option to prevent captures from accessing local, loopback, or otherwise non-public network resources. However, favicon retrieval was performed separately from the browser request-routing protections. Favicon URLs extracted from rendered HTML were resolved and subsequently fetched directly using an aiohttp.ClientSession.
An attacker able to supply or control a web page processed by PlaywrightCapture could include a crafted favicon reference, for example pointing to a loopback address, private IP address, or another resource reachable only from the PlaywrightCapture host. When the page was processed, the favicon retrieval routine could issue an HTTP request to this destination despite only_global_lookup being enabled.
This bypass could therefore be used to make the PlaywrightCapture host interact with internal network services that should not be reachable through a capture. Depending on the targeted service and its response, this could enable internal service discovery, access to internal resources, or interaction with HTTP endpoints available only from the capture infrastructure.
The patch introduces a common URL validation routine and applies it to favicon retrieval. Direct non-global IP addresses, localhost, .local domains, malformed URLs, and other explicitly non-public destinations are rejected before the favicon request is performed.
This fix is a complementary fix to CVE-2026-44439 - GCVE-0-2026-44439 - GHSA-687H-XW6F-Q2QW
Severity
SSVC
Automatable: Yes
Exploitation: None
Technical Impact: Partial
Value Density: Diffused
CIRCL (v2.0)
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 18:36 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Lookyloo/PlaywrightCapture/com… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Lookyloo | PlaywrightCapture |
Affected:
0 , < 1.40.6
(semver)
|
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CVE-2026-63175 (GCVE-0-2026-63175)
Vulnerability from cvelistv5 – Published: 2026-07-15 21:26 – Updated: 2026-07-16 12:51
VLAI
EPSS
VEX
Title
Cross-Capture Session Data Leakage Due to Shared Mutable State in Looklyloo - PlaywrightCapture
Summary
PlaywrightCapture stored capture-specific configuration and runtime data as mutable class-level variables rather than instance-level variables. Consequently, multiple Capture objects running within the same Python process could share state, including HTTP headers, cookies, browser storage, HTTP credentials, proxy configuration, user-agent settings, geolocation information, and captured request data.
In a multi-user or concurrent deployment, information supplied during one capture could therefore persist and be reused by a subsequent or parallel capture. This could result in the disclosure of authentication cookies, credentials, browser storage, or captured request data belonging to another user. It could also cause requests to be performed with another capture's authentication context, headers, or proxy configuration, potentially enabling unauthorized access to remote resources or interference with other capture operations.
The vulnerability is resolved by initializing all capture-specific settings and request data as instance variables in the Capture constructor, ensuring that state is isolated between capture operations.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-16 12:51 UTC
CWE
- CWE-613 - Insufficient Session Expiration
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Lookyloo/PlaywrightCapture/com… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Lookyloo | PlaywrightCapture |
Affected:
0 , ≤ v1.40.2
(semver)
|
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CVE-2026-44439 (GCVE-0-2026-44439)
Vulnerability from cvelistv5 – Published: 2026-05-13 21:29 – Updated: 2026-05-15 18:01
VLAI
EPSS
VEX
Title
LookyLoo - PlaywrightCapture permits access to local files and internal network resources during page capture
Summary
PlaywrightCapture is a simple replacement for splash using playwright. Prior to 1.39.6, PlaywrightCapture did not sufficiently restrict navigations and resource requests initiated by rendered pages. An attacker-controlled page could abuse browser-side redirection mechanisms, such as window.location.href, to make the capture process open file:// URLs or request resources hosted on private, loopback, link-local, or otherwise non-public IP addresses. In deployments where PlaywrightCapture processes untrusted URLs, this could allow a remote attacker to perform server-side request forgery against internal services or attempt to access local files from the capture environment. Depending on what capture artifacts are generated and exposed, responses from those resources could potentially be leaked through screenshots, saved page content, logs, or other capture outputs. This vulnerability is fixed in 1.39.6.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-15 18:00 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/Lookyloo/PlaywrightCapture/sec… | x_refsource_CONFIRM |
| https://github.com/Lookyloo/PlaywrightCapture/com… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Lookyloo | PlaywrightCapture |
Affected:
< 1.39.6
|
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GCVE-1-2026-0028
Vulnerability from gna-1 – Published: 2026-04-29 19:28 – Updated: 2026-04-29 19:28
VLAI
EPSS
VEX
Title
LookyLoo - PlaywrightCapture permits access to local files and internal network resources during page capture
Summary
PlaywrightCapture did not sufficiently restrict navigations and resource requests initiated by rendered pages. An attacker-controlled page could abuse browser-side redirection mechanisms, such as window.location.href, to make the capture process open file:// URLs or request resources hosted on private, loopback, link-local, or otherwise non-public IP addresses.
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The patch mitigates the issue by introducing request routing checks that block secondary requests to local files, non-global IP addresses, and .local domains when only_global_lookup is enabled, while still allowing the originally requested capture URL.
Severity
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Lookyloo/PlaywrightCapture/com… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| LookyLoo | PlaywrightCapture |
Affected:
0 , < 1.39.6
(semver)
|
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"value": "PlaywrightCapture did not sufficiently restrict navigations and resource requests initiated by rendered pages. An attacker-controlled page could abuse browser-side redirection mechanisms, such as window.location.href, to make the capture process open file:// URLs or request resources hosted on private, loopback, link-local, or otherwise non-public IP addresses.\n\n\nIn deployments where PlaywrightCapture processes untrusted URLs, this could allow a remote attacker to perform server-side request forgery against internal services or attempt to access local files from the capture environment. Depending on what capture artifacts are generated and exposed, responses from those resources could potentially be leaked through screenshots, saved page content, logs, or other capture outputs.\n\n\nThe patch mitigates the issue by introducing request routing checks that block secondary requests to local files, non-global IP addresses, and .local domains when only_global_lookup is enabled, while still allowing the originally requested capture URL."
}
],
"impacts": [
{
"capecId": "CAPEC-664",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-664 Server Side Request Forgery"
}
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}
],
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"Safety": "NOT_DEFINED",
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"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 9.3,
"baseSeverity": "CRITICAL",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "HIGH",
"subIntegrityImpact": "HIGH",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:H/SI:H/SA:H",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-918",
"description": "CWE-918 Server-Side Request Forgery (SSRF)",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-200",
"description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"orgId": "00000000-0000-4000-9000-000000000000"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://github.com/Lookyloo/PlaywrightCapture/commit/49e289eba756e4fbac1322c33cfd111411562405"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "LookyLoo - PlaywrightCapture permits access to local files and internal network resources during page capture",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "00000000-0000-4000-9000-000000000000",
"datePublished": "2026-04-29T19:28:00.000Z",
"dateUpdated": "2026-04-29T19:28:44.316023Z",
"requesterUserId": "00000000-0000-4000-9000-000000000000",
"serial": 1,
"state": "PUBLISHED",
"vulnId": "GCVE-1-2026-0028",
"vulnerabilitylookup_history": [
[
"alexandre.dulaunoy@circl.lu",
"2026-04-29T19:28:20.659212Z"
],
[
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}