CVE-2008-4456

LOWCVSS v2 · 2.62.6—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 2.6 — v2 rates that LOW (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:H/Au:N/C:N/I:P/A:N. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 7.0% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Sources: epss, nvd_v2
Weaponized
2.6EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 7%CVSS v2: 2.6Exploit: Exploit-DB (verified) · public exploitExposed: 0

A fix is available — apply it.

Cross-site scripting (XSS) vulnerability in the command-line client in MySQL 5.0.26 through 5.0.45, and other versions including versions later than 5.0.45, when the --html option is enabled, allows attackers to inject arbitrary web script or HTML by placing it in a database cell, which might be accessed by this client when composing an HTML document. NOTE: as of 20081031, the issue has not been fixed in MySQL 5.0.67.

CVSS v2.0 (legacy)
2.6LOWNVD never assigned a CVSS v3 rating to this CVE
EG Score
2.6(low)
EG Risk
42(Track)
EG Risk 42/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity26% × 45%
Exploitation65% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
7%
EPSS %ILE
94%
KEV
Not listed

Published

October 6, 2008

Last Modified

April 23, 2026

References (46)

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntumysql-server-5.1 (5.1.37-1ubuntu5.1) @ karmic2026-05-30ubuntu
ubuntumysql-server-5.1 (5.1.61-0ubuntu0.10.10.1) @ maverick2026-05-30ubuntu
redhatmysql-0:4.1.22-2.el4_8.32010-02-16redhat
redhatmysql-0:5.0.77-3.el52009-09-02redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(2 across 2 ecosystems)
Debian:4.0(1)
PackageVulnerable rangeFixed inDependents
mysql-dfsg-5.05.0.32-7etch1 ... 5.0.32-7etch8 (8 versions)5.0.32-7etch10—
Debian:5.0(1)
PackageVulnerable rangeFixed inDependents
mysql-dfsg-5.05.0.51a-23, 5.0.51a-24, 5.0.51a-24+lenny1~bpo40+1, 5.0.51a-24~bpo40+15.0.51a-24+lenny1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(4)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 1× in last 7d / 12× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 115 total refreshes for this CVE.

  1. 2026-09-18 19:20 UTCEPSS rescore
  2. 2026-09-17 19:20 UTCEPSS rescore
  3. 2026-09-15 03:04 UTCEPSS rescore
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  21. 2026-07-26 13:36 UTCEG score recompute▲ 2.60
  22. 2026-07-25 14:12 UTCEPSS rescore
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  25. 2026-07-23 00:56 UTCEG score recompute
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  1. 2026-07-23 00:35 UTCEG score recompute
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  3. 2026-07-22 21:40 UTCEG score recompute
  4. 2026-07-20 17:03 UTCEPSS rescore
  5. 2026-07-18 09:59 UTCEPSS rescore
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  40. 2026-06-18 17:49 UTCEPSS rescore
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  44. 2026-06-16 17:49 UTCEPSS rescore
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  48. 2026-06-13 22:57 UTCEPSS rescore
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  70. 2026-05-30 20:05 UTCEG score recompute
  71. 2026-05-30 20:05 UTCVendor advisory
  72. 2026-05-30 20:05 UTCGHSA enrichment
  73. 2026-05-29 13:40 UTCEPSS rescore
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Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-32445✓ verified
    First seen Sep 30, 2008

    MySQL 5 - Command Line Client HTML Special Characters HTML Injection

    Open source ↗

Related CVEs(same product + same vendor + same CWE)

Frequently asked(4)

What is CVE-2008-4456?
CVE-2008-4456 is a low vulnerability published on October 6, 2008. Cross-site scripting (XSS) vulnerability in the command-line client in MySQL 5.0.26 through 5.0.45, and other versions including versions later than 5.0.45, when the --html option is enabled, allows attackers to inject arbitrary web script or HTML by placing it in a database cell, which might be…
When was CVE-2008-4456 disclosed?
CVE-2008-4456 was first published in the National Vulnerability Database on October 6, 2008, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2008-4456 actively exploited?
CVE-2008-4456 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7% probability of exploitation in the next 30 days, which ranks it in the top 6.0% of all scored CVEs.
How do I remediate CVE-2008-4456?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2008-4456, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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