CVE-2022-31158
Authentication Bypass by Capture-replay in packbackbooks/lti-1-3-php-library
LTI 1.3 Tool Library is a library used for building IMS-certified LTI 1.3 tool providers in PHP. Prior to version 5.0, the Nonce Claim Value was not being validated against the nonce value sent in the Authentication Request. Users should upgrade to version 5.0 to receive a patch. There are currently no known workarounds.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Authentication Bypass by Capture-replay in packbackbooks/lti-1-3-php-library
LTI 1.3 Tool Library is a library used for building IMS-certified LTI 1.3 tool providers in PHP. Prior to version 5.0, the Nonce Claim Value was not being validated against the nonce value sent in the Authentication Request. Users should upgrade to version 5.0 to receive a patch. There are currently no known workarounds.
- Record
CVE-2022-31158- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-294
- Updated
- 2026-11-02
EUVDEUVD-2022-6249
LTI 1.3 Tool Library is a library used for building IMS-certified LTI 1.3 tool providers in PHP. Prior to version 5.0, the Nonce Claim Value was not being validated against the nonce value sent in the Authentication Request. Users should upgrade to version 5.0 to receive a patch. There are currently no known workarounds.
- Record
EUVD-2022-6249- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-5p73-qg2v-383h
LTI 1.3 Tool Library's Nonce Claim Value not validated against nonce value sent in Authentication Request before v5.0
Impact
Nonce Claim Value was not being validated against the nonce value sent in the Authentication Request.
Patches
Users should upgrade to version 5.0 immediately
Workarounds
None.
- Record
GHSA-5p73-qg2v-383h- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-294, CWE-327
- Updated
- 2026-11-02
NVD
LTI 1.3 Tool Library is a library used for building IMS-certified LTI 1.3 tool providers in PHP. Prior to version 5.0, the Nonce Claim Value was not being validated against the nonce value sent in the Authentication Request. Users should upgrade to version 5.0 to receive a patch. There are currently no known workarounds.
- Record
CVE-2022-31158- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-294
- Updated
- 2026-11-02
OSV
Authentication Bypass by Capture-replay in packbackbooks/lti-1-3-php-library
LTI 1.3 Tool Library is a library used for building IMS-certified LTI 1.3 tool providers in PHP. Prior to version 5.0, the Nonce Claim Value was not being validated against the nonce value sent in the Authentication Request. Users should upgrade to version 5.0 to receive a patch. There are currently no known workarounds.
- Record
CVE-2022-31158- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-294
- Updated
- 2026-11-02
OSVGHSA-5p73-qg2v-383h
LTI 1.3 Tool Library's Nonce Claim Value not validated against nonce value sent in Authentication Request before v5.0
Impact
Nonce Claim Value was not being validated against the nonce value sent in the Authentication Request.
Patches
Users should upgrade to version 5.0 immediately
Workarounds
None.
- Record
GHSA-5p73-qg2v-383h- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-294, CWE-327
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
packbackbooks/lti-1-3-php-libraryPackagist |
before 5.0 | 5.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-31158 is a high vulnerability (CVSS 7.5) in Packback Lti 1.3 Tool Library, published July 15, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.86%, the 58th percentile. Fixed in packbackbooks/lti-1-3-php-library 5.0.
References
github.com/packbackbooks/lti-1-3-php-library/security/advisories/GHSA-5p73-qg2v-383h
openid.net/specs/openid-connect-core-1_0.html
nvd.nist.gov/vuln/detail/CVE-2022-31158