Security readout for executives and security teams
Plain-English summary
CVE-2016-15032 is a cross-site scripting issue in the unsupported mback2k mh_httpbl TYPO3 extension. Affected versions are 1.1.0 through 1.1.7. Business risk is limited but real: a successful attack could modify web content seen by users through script execution.
Executive priority
Treat as a moderate-priority legacy web application risk. It does not show confirmed active exploitation in the provided sources, but unsupported software with a known web-facing XSS issue should be removed, upgraded, or formally accepted.
Technical view
The issue affects stopOutput in class.tx_mhhttpbl.php. The source states manipulation of $_SERVER['REMOTE_ADDR'] can lead to CWE-79 cross-site scripting. CVSS v2 is 4.0 with network attack vector, low complexity, single authentication, partial integrity impact, and no confidentiality or availability impact.
Likely exposure
Exposure is likely limited to TYPO3 sites that still run the mh_httpbl extension versions 1.1.0 through 1.1.7. The CVE notes the affected product is no longer supported by the maintainer, so legacy TYPO3 estates deserve priority review.
Exploitation context
The source says the attack can be initiated remotely, but the CVSS vector includes authentication required. KEV is false in the provided bundle, and no cited source here confirms active exploitation in the wild.
Researcher notes
Source evidence identifies affected versions, vulnerable function, tainted REMOTE_ADDR handling, CWE-79, and the fixing release. The bundle does not provide exploit telemetry, broad product impact beyond mh_httpbl on TYPO3, or operational mitigations besides upgrading.
Mitigation direction
- Upgrade mh_httpbl to version 1.1.8 or later where applicable.
- Apply the referenced security release or patch a754bf306a433a8c18b55e25595593e8f19b9463.
- Remove or replace the extension if it is unsupported in your environment.
- Check TYPO3 and extension vendor guidance before relying on compensating controls.
Validation and detection
- Inventory TYPO3 installations for the mh_httpbl extension.
- Confirm deployed mh_httpbl versions are not 1.1.0 through 1.1.7.
- Verify whether the 1.1.8 security release or referenced patch is present.
- Check whether the extension is still required on public-facing TYPO3 sites.
- Document unsupported extension ownership and replacement plans.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2016-15032 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4 (2.0)
- Known Exploited
- No
- Published
Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
AV:N/AC:L/Au:S/C:N/I:P/A:N82.9Primary CVE scoreVulnerability scoring details
Base CVSS 2.0 score
4MediumVector: AV:N/AC:L/Au:S/C:N/I:P/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://vuldb.com/?id.230391CVE reference · vdb-entry, technical-description
- https://vuldb.com/?ctiid.230391CVE reference · signature, permissions-required
- https://github.com/mback2k/mh_httpbl/commit/a754bf306a433a8c18b55e25595593e8f19b9463CVE reference · patch
- https://github.com/mback2k/mh_httpbl/releases/tag/mh_httpbl_1.1.8_securityCVE reference · patch
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.