viafintech Barzahlen Payment Module PHP SDK Webhook.php verify timing discrepancy
Published Jan 8, 2023
5.3
MEDIUMCVSS 3.1
EPSS 0.63%
Description
A vulnerability, which was classified as problematic, was found in viafintech Barzahlen Payment Module PHP SDK up to 2.0.0. Affected is the function verify of the file src/Webhook.php. The manipulation leads to observable timing discrepancy. The complexity of an attack is rather high. The exploitability is told to be difficult. Upgrading to version 2.0.1 is able to address this issue. The patch is identified as 3e7d29dc0ca6c054a6d6e211f32dae89078594c1. It is recommended to upgrade the affected component. VDB-217650 is the identifier assigned to this vulnerability.
Affected products
-
- Version 2.0StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Viafintech | Barzahlen Payment Module PHP SDK | n/a |
|
- < 2.0.1
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
1 other source (CVE.org) ▾
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
AV:A/AC:H/Au:S/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2023–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.63% (0.00630) | 48.29th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.63% (0.00625) | 45.02th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.10% (0.00101) | 25.55th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.10% (0.00100) | 42.93th | v3 (v2023.03.01) |
| Jun 20, 2024 | 0.10% (0.00102) | 42.12th | v3 (v2023.03.01) |
| Apr 14, 2024 | 0.09% (0.00086) | 35.62th | v3 (v2023.03.01) |
| Feb 10, 2024 | 0.08% (0.00080) | 32.41th | v3 (v2023.03.01) |
| Jan 15, 2024 | 0.07% (0.00074) | 30.60th | v3 (v2023.03.01) |
| Dec 9, 2023 | 0.06% (0.00060) | 23.36th | v3 (v2023.03.01) |
| May 8, 2023 | 0.05% (0.00052) | 18.12th | v3 (v2023.03.01) |
| Apr 17, 2023 | 0.06% (0.00060) | 23.65th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00052) | 18.25th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Jan 13, 2023 | 1.02% (0.01018) | 39.90th | v2 (v2022.01.01) |
| Jan 9, 2023 | 0.95% (0.00950) | 31.57th | v2 (v2022.01.01) |
References (7)
- https://github.com/advisories/GHSA-vg5x-6q66-rvgx Advisory
- https://github.com/viafintech/Barzahlen-PHP/commit/3e7d29dc0ca6c054a6d6e211f32dae89078594c1 patchThird Party Advisory
- https://github.com/viafintech/Barzahlen-PHP/pull/8 issue-trackingPatchThird Party Advisory
- https://github.com/viafintech/Barzahlen-PHP/releases/tag/v2.0.1 patchRelease NotesThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-15015
- https://vuldb.com/?ctiid.217650 signaturepermissions-requiredThird Party Advisory
- https://vuldb.com/?id.217650 vdb-entrytechnical-descriptionThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/advisories/GHSA-vg5x-6q66-rvgx | Advisory | |
| https://github.com/viafintech/Barzahlen-PHP/commit/3e7d29dc0ca6c054a6d6e211f32dae89078594c1 | patchThird Party Advisory | |
| https://github.com/viafintech/Barzahlen-PHP/pull/8 | issue-trackingPatchThird Party Advisory | |
| https://github.com/viafintech/Barzahlen-PHP/releases/tag/v2.0.1 | patchRelease NotesThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-15015 | ||
| https://vuldb.com/?ctiid.217650 | signaturepermissions-requiredThird Party Advisory | |
| https://vuldb.com/?id.217650 | vdb-entrytechnical-descriptionThird Party Advisory |
Change history (0)
No recorded changes yet.