CVE-2013-4701

HIGHCVSS v2 · 7.57.5—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 7.5 — v2 rates that HIGH (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:L/Au:N/C:P/I:P/A:P. 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 3.0% 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
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3%CVSS v2: 7.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Auth/Yadis/XML.php in PHP OpenID Library 2.2.2 and earlier allows remote attackers to read arbitrary files, send HTTP requests to intranet servers, or cause a denial of service (CPU and memory consumption) via XRDS data containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue.

CVSS v2.0 (legacy)
7.5HIGHNVD never assigned a CVSS v3 rating to this CVE
EG Score
7.5(low)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity75% × 45%
Exploitation3% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
3%
EPSS %ILE
86%
KEV
Not listed

Published

August 21, 2013

Last Modified

April 29, 2026

References (10)

Affected Packages

(2 across 1 ecosystem)
Packagist(2)
PackageVulnerable rangeFixed inDependents
openid/php-openid—2.3.0—
typo3/cms6.2.0 ... 6.2.5 (6 versions)6.2.6—

Data Freshness Timeline

(refreshed 10× in last 7d / 33× 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.

  1. 2026-07-26 13:48 UTCEG score recompute▲ 7.50
  2. 2026-07-23 14:14 UTCEPSS rescore
  3. 2026-07-23 01:10 UTCEG score recompute
  4. 2026-07-23 00:14 UTCEG score recompute
  5. 2026-07-22 21:52 UTCEG score recompute
  6. 2026-07-22 14:04 UTCEPSS rescore
  7. 2026-07-21 15:21 UTCEPSS rescore
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  1. 2026-07-05 02:26 UTCEPSS rescore
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  5. 2026-06-30 23:19 UTCEPSS rescore
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  21. 2026-06-18 17:49 UTCEPSS rescore
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  28. 2026-06-15 17:44 UTCEPSS rescore
  29. 2026-06-14 23:14 UTCEPSS rescore
  30. 2026-06-13 22:57 UTCEPSS rescore
  31. 2026-06-12 23:08 UTCEPSS rescore
  32. 2026-06-11 13:56 UTCEPSS rescore
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  45. 2026-06-02 20:10 UTCEPSS rescore
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  47. 2026-06-01 13:49 UTCEPSS rescore
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  49. 2026-05-31 22:28 UTCEPSS rescore
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  51. 2026-05-31 00:14 UTCEPSS rescore
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  53. 2026-05-29 13:41 UTCEPSS rescore
  54. 2026-05-29 13:41 UTCEPSS rescore
  55. 2026-05-28 22:45 UTCEG score recompute
  56. 2026-05-28 13:42 UTCEPSS rescore
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  58. 2026-05-28 13:42 UTCEPSS rescore
  59. 2026-05-27 13:38 UTCEPSS rescore
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  61. 2026-05-26 13:41 UTCEPSS rescore
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  72. 2026-05-18 21:29 UTCEPSS rescore
  73. 2026-05-18 21:29 UTCEPSS rescore

Frequently asked(4)

What is CVE-2013-4701?
CVE-2013-4701 is a high vulnerability published on August 21, 2013. Auth/Yadis/XML.php in PHP OpenID Library 2.2.2 and earlier allows remote attackers to read arbitrary files, send HTTP requests to intranet servers, or cause a denial of service (CPU and memory consumption) via XRDS data containing an external entity declaration in conjunction with an entity…
When was CVE-2013-4701 disclosed?
CVE-2013-4701 was first published in the National Vulnerability Database on August 21, 2013, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2013-4701 actively exploited?
CVE-2013-4701 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3% probability of exploitation in the next 30 days, which ranks it in the top 14.1% of all scored CVEs.
How do I remediate CVE-2013-4701?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2013-4701, 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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