Cross-site scripting (XSS) vulnerability in the WddxPacket::recursiveAddVar function in HHVM (aka the HipHop Virtual Machine) before 3.5.0 allows remote attackers to inject arbitrary web script or HTML via a crafted string to the wddx_serialize_value function
Published Apr 13, 2015
4.3
MEDIUMCVSS 2.0
EPSS 2.14%
Description
Cross-site scripting (XSS) vulnerability in the WddxPacket::recursiveAddVar function in HHVM (aka the HipHop Virtual Machine) before 3.5.0 allows remote attackers to inject arbitrary web script or HTML via a crafted string to the wddx_serialize_value function.
Affected products
No data.
- ≤ 3.4.2
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.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:P/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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.14% (0.02140) | 81.37th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.15% (0.02155) | 79.73th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.52% (0.00524) | 64.98th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.31% (0.00306) | 70.66th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.31% (0.00312) | 69.32th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.31% (0.00312) | 65.38th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (7)
- http://www.openwall.com/lists/oss-security/2015/04/01/1 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2015/04/07/3 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/74061 vdb-entryx_refsource_BID
- https://github.com/facebook/hhvm/commit/324701c9fd31beb4f070f1b7ef78b115fbdfec34 x_refsource_CONFIRM
- https://github.com/facebook/hhvm/issues/4283 x_refsource_CONFIRM
- https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-March/000175.html mailing-listx_refsource_MLISTVendor Advisory
- https://phabricator.wikimedia.org/T85851 x_refsource_CONFIRMExploitVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2015/04/01/1 | mailing-listx_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2015/04/07/3 | mailing-listx_refsource_MLIST | |
| http://www.securityfocus.com/bid/74061 | vdb-entryx_refsource_BID | |
| https://github.com/facebook/hhvm/commit/324701c9fd31beb4f070f1b7ef78b115fbdfec34 | x_refsource_CONFIRM | |
| https://github.com/facebook/hhvm/issues/4283 | x_refsource_CONFIRM | |
| https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-March/000175.html | mailing-listx_refsource_MLISTVendor Advisory | |
| https://phabricator.wikimedia.org/T85851 | x_refsource_CONFIRMExploitVendor Advisory |
Change history (0)
No recorded changes yet.