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CVE-2022-21715

Cross-site Scripting Vulnerability in CodeIgniter4

5.4 MediumFix available

CodeIgniter4 is the 4.x branch of CodeIgniter, a PHP full-stack web framework. A cross-site scripting (XSS) vulnerability was found in API\ResponseTrait in Codeigniter4 prior to version 4.1.8. Attackers can do XSS attacks if a potential victim is using API\ResponseTrait. Version 4.1.8 contains a patch for this vulnerability. There are two potential workarounds available. Users may avoid using API\ResponseTrait or ResourceController Users may also disable Auto Route and use defined routes only.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

1.00%Unchanged since Feb 8, 2022
90%50%10%1%

What each source reports

CVE List Score used 5.4

Cross-site Scripting Vulnerability in CodeIgniter4

CodeIgniter4 is the 4.x branch of CodeIgniter, a PHP full-stack web framework. A cross-site scripting (XSS) vulnerability was found in API\ResponseTrait in Codeigniter4 prior to version 4.1.8. Attackers can do XSS attacks if a potential victim is using API\ResponseTrait. Version 4.1.8 contains a patch for this vulnerability. There are two potential workarounds available. Users may avoid using API\ResponseTrait or ResourceController Users may also disable Auto Route and use defined routes only.

Record
CVE-2022-21715
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
EUVDEUVD-2022-0495 5.4

CodeIgniter4 is the 4.x branch of CodeIgniter, a PHP full-stack web framework. A cross-site scripting (XSS) vulnerability was found in API\ResponseTrait in Codeigniter4 prior to version 4.1.8. Attackers can do XSS attacks if a potential victim is using API\ResponseTrait. Version 4.1.8 contains a patch for this vulnerability. There are two potential workarounds available. Users may avoid using API\ResponseTrait or ResourceController Users may also disable Auto Route and use defined routes only.

Record
EUVD-2022-0495
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-7528-7jg5-6g62 5.4

Cross-site Scripting Vulnerability in CodeIgniter4

Impact

Cross-Site Scripting (XSS) vulnerability was found in API\ResponseTrait in Codeigniter4. Attackers can do XSS attacks if you are using API\ResponseTrait.

Patches

Upgrade to v4.1.8 or later.

Workarounds

Do one of the following:

  1. Do not use API\ResponseTrait nor ResourceController
  2. Disable Auto Route and Use Defined Routes Only

References

For more information

If you have any questions or comments about this advisory:

Record
GHSA-7528-7jg5-6g62
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
NVD 5.4

CodeIgniter4 is the 4.x branch of CodeIgniter, a PHP full-stack web framework. A cross-site scripting (XSS) vulnerability was found in API\ResponseTrait in Codeigniter4 prior to version 4.1.8. Attackers can do XSS attacks if a potential victim is using API\ResponseTrait. Version 4.1.8 contains a patch for this vulnerability. There are two potential workarounds available. Users may avoid using API\ResponseTrait or ResourceController Users may also disable Auto Route and use defined routes only.

Record
CVE-2022-21715
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness
CWE-79
Updated
2026-11-02
OSV 5.4

Cross-site Scripting Vulnerability in CodeIgniter4

CodeIgniter4 is the 4.x branch of CodeIgniter, a PHP full-stack web framework. A cross-site scripting (XSS) vulnerability was found in API\ResponseTrait in Codeigniter4 prior to version 4.1.8. Attackers can do XSS attacks if a potential victim is using API\ResponseTrait. Version 4.1.8 contains a patch for this vulnerability. There are two potential workarounds available. Users may avoid using API\ResponseTrait or ResourceController Users may also disable Auto Route and use defined routes only.

Record
CVE-2022-21715
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSVGHSA-7528-7jg5-6g62 5.4

Cross-site Scripting Vulnerability in CodeIgniter4

Impact

Cross-Site Scripting (XSS) vulnerability was found in API\ResponseTrait in Codeigniter4. Attackers can do XSS attacks if you are using API\ResponseTrait.

Patches

Upgrade to v4.1.8 or later.

Workarounds

Do one of the following:

  1. Do not use API\ResponseTrait nor ResourceController
  2. Disable Auto Route and Use Defined Routes Only

References

For more information

If you have any questions or comments about this advisory:

Record
GHSA-7528-7jg5-6g62
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSVBIT-codeigniter-2022-21715 No score

CodeIgniter4 is the 4.x branch of CodeIgniter, a PHP full-stack web framework. A cross-site scripting (XSS) vulnerability was found in API\ResponseTrait in Codeigniter4 prior to version 4.1.8. Attackers can do XSS attacks if a potential victim is using API\ResponseTrait. Version 4.1.8 contains a patch for this vulnerability. There are two potential workarounds available. Users may avoid using API\ResponseTrait or ResourceController Users may also disable Auto Route and use defined routes only.

Record
BIT-codeigniter-2022-21715
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
codeigniter4/framework
Packagist
 before 4.1.8
4.1.8
codeigniter
Bitnami
 4.0.0 up to 4.1.8
4.1.8
codeigniter4/framework
Packagist
 before 4.1.8, plus listed versions
4.0.04.0.0-rc.4v4.0.0-alpha.3v4.0.0-alpha.4v4.0.0-alpha.5
Show 21 moreShow less
v4.0.0-beta.1v4.0.0-beta.2v4.0.0-beta.3v4.0.0-beta.4v4.0.0-rc.1v4.0.0-rc.2v4.0.0-rc.2.1v4.0.0-rc.3v4.0.1v4.0.2v4.0.3v4.0.4v4.0.5v4.1.0v4.1.1v4.1.2v4.1.3v4.1.4v4.1.5v4.1.6v4.1.7
4.1.8

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-21715 is a medium vulnerability (CVSS 5.4) in Codeigniter, published January 24, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.00%, the 63rd percentile. Fixed in codeigniter4/framework 4.1.8.

References

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