CVE-2023-48707

mediumpriority · track · 26OT risk · elevatedEPSS 0.003 · 21 %ileEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.28% (21st) EPSS
CVSS 6.5 · medium
Is it mine?
3 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

CodeIgniter Shield is an authentication and authorization provider for CodeIgniter 4. The `secretKey` value is an important key for HMAC SHA256 authentication and in affected versions was stored in the database in cleartext form. If a malicious person somehow had access to the data in the database, they could use the key and secretKey for HMAC SHA256 authentication to send requests impersonating that corresponding user. This issue has been addressed in version 1.0.0-beta.8. Users are advised to upgrade. There are no known workarounds for this vulnerability.

01

cvss

Technical severity, 0–10. One row per scoring source.

6.5
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 3.6
v3.15mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:L/A:Nsecondary · ENISA EU
v3.15mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:L/A:Nsecondary · security-advisories@github.comexploitability 0.7 · impact 4.2
v3.15mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:L/A:Nsecondary · OSV
v3.16mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)
02

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-312USCWE-312US
03

affected products (3)

Products and version ranges known to be affected.

04

advisories (1)

Vendor and ecosystem advisories describing this.

  • GHSA-v427-c49j-8w6xCleartext Storage of Sensitive Information in HMAC SHA256 Authentication2023-11-23ghsa · osvUS

    ### Impact **secretKey**, an important key for HMAC SHA256 authentication, was stored in the database in raw form. If a malicious person somehow had access to the data in the database, they could use the key and secretKey for HMAC SHA256 authentication to send requests impersonating that person. ### Patches Upgrade to Shield v1.0.0-beta.8 or later. After upgrading, all existing secret keys must be encrypted. See https://github.com/codeigniter4/shield/blob/develop/UPGRADING.md for details. ### Workarounds None. ### References - https://codeigniter4.github.io/shield/references/authentication/hmac/ ### For more information If you have any questions or comments about this advisory: * Open an issue or discussion in [codeigniter4/shield](https://github.com/codeigniter4/shield) * Email us at [security@codeigniter.com](mailto:security@codeigniter.com)

05

also known as (3)

Other names and identifiers for this entity.

06

sources

Which sources assert this record, and when.

cnnvdenisa_euvdnvdosvNVDCVE.orgMITRE
published 2023-11-24modified 2026-06-17
07

references (6)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan