VulnerabilityPublished 13 Aug 2026Updated 17 Sep 2026

CVE-2024-41810: Scrapy · Twisted vulnerable to HTML injection in HTTP redirect body

Affects scrapySource GCVE Database

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Authoritative record:CVE-2024-41810· Medium 6.1

Not known to be exploited · public detection template (Nuclei) · CVSS 6.1 Medium : upgrade to 2.11.2_3 when convenient.

Data as of 1 Nov 2026, 22:57 UTC

CVSS 3.1 base score

6.1Medium

How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none

CVSS scores by source
CNA (GitHub_M)	CVSS 3.1	6.1

EPSS: 1.2% chance of exploitation in 30 days – higher than 68% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 2.11.2_3

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Changed
Confidentiality: Low
Integrity: Low
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Changed: An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component. In this case, the vulnerable component and the impacted component are different and managed by different security authorities.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 29 Jul 2024
Detectable: evidence found.
nuclei template: Twisted - Open Redirect & XSS
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 1 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade scrapy to 2.11.2_3.

Affected software

Product	Affected	Fixed in
Homebrewscrapy`pkg:brew/scrapy`Other threats	Affected >=2.9.0 <2.11.2_3	Fixed in 2.11.2_3

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A patch is available for this vulnerability and should be applied to affected versions. The vendor advisory confirms the issue and the availability of a fix. If upgrading immediately is not possible, ensure that application code does not allow untrusted input to control redirect URLs to prevent exploitation. Note that the vulnerability is only exploitable in Firefox due to its handling of redirect responses.

Description

The Twisted web framework's redirectTo function contains an HTML injection vulnerability that can lead to reflected cross-site scripting (XSS) if an attacker controls the redirect URL. This occurs because the redirectTo function reflects the destination URL in the HTML body without encoding, allowing injection of arbitrary HTML/JavaScript. The vulnerability is exploitable only in Firefox due to its handling of the redirect response body. Exploitation could allow malicious scripts to run in the victim's session context, potentially leading to unauthorized access or actions. Affected versions are Twisted versions used by Scrapy from 2.9.0 up to but not including 2.11.2_3. A patch is available for this issue.

Impact

Successful exploitation allows execution of arbitrary JavaScript in the context of the victim's browser session, potentially enabling unauthorized access or modification of user data and unauthorized actions within the victim's session. The impact is limited to browsers that render the injected HTML body in the redirect response, notably Firefox. Other browsers reject or do not render the injected content, reducing the attack surface.

Summary

The Twisted framework's redirectTo function generates an HTTP 302 redirect response containing an HTML body that reflects the redirect URL without output encoding. If an attacker can control the redirect URL (e.g., via an open redirect in application code), they can inject arbitrary HTML/JavaScript, resulting in reflected XSS. This vulnerability is tracked as CVE-2024-41810. It is exploitable primarily in Firefox browsers, which render the HTML body, while other browsers do not. The vulnerability affects Twisted versions >=2.9.0 and <2.11.2_3. A proof of concept demonstrates the injection of a script alert via a crafted URL parameter. The issue is known to maintainers and a patch is available.

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 18 Sep 2026, 01:50 UTC

Public exploits and detectiona Nuclei detection template

Technical details

References

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