CVE-2026-13605

MEDIUMPre-NVD 6.86.8—
EchelonGraph scoreMEDIUM confidence

Score 6.8 from GitHub Security Advisory published 2026-07-29. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
6.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.8Exploit: Elevated riskExposed: 0

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

The PhotoSwipe WordPress plugin through 4.1.1.1 uses the title attribute of author-supplied link markup as a lightbox caption that is written into the page DOM without escaping. Because the title attribute survives the post-content sanitization applied to users who lack the unfiltered_html capability, an authenticated user with Author-level access can store a JavaScript payload that executes in the browser of any visitor, including an administrator, who clicks the link.

CVSS v3
6.8
EG Score
6.8(medium)
EG Risk
47(Track*)
EG Risk 47/100SSVC: 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
Severity68% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

July 29, 2026

Last Modified

July 30, 2026

Advisory Details (1)

Auto-updated Jul 29, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Photo Swipe <= 4.1.1.1 – Author+ Stored XSS via title Attribute | CVE 2026-13605 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/7ec73098-99eb-48cb-8ff6-a05110691117/

Vendor Advisories for CVE-2026-13605(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 15× in last 7d / 84× 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. 2026-08-30 01:21 UTCEPSS rescore
  2. 2026-08-29 23:25 UTCEG score recompute
  3. 2026-08-29 23:25 UTCGHSA enrichment
  4. 2026-08-28 21:40 UTCEPSS rescore
  5. 2026-08-28 01:24 UTCEG score recompute
  6. 2026-08-28 01:24 UTCGHSA enrichment
  7. 2026-08-27 14:24 UTCEPSS rescore
  8. 2026-08-27 01:36 UTCEG score recompute
  9. 2026-08-27 01:35 UTCGHSA enrichment
  10. 2026-08-26 02:09 UTCEG score recompute
  11. 2026-08-26 02:09 UTCGHSA enrichment
  12. 2026-08-25 13:48 UTCEPSS rescore
  13. 2026-08-25 02:42 UTCEG score recompute
  14. 2026-08-25 02:42 UTCGHSA enrichment
  15. 2026-08-24 03:16 UTCGHSA enrichment
  16. 2026-08-23 03:06 UTCEG score recompute
  17. 2026-08-23 03:06 UTCGHSA enrichment
  18. 2026-08-23 00:19 UTCEPSS rescore
  19. 2026-08-22 03:40 UTCEG score recompute
  20. 2026-08-22 03:40 UTCGHSA enrichment
  21. 2026-08-21 23:48 UTCEPSS rescore
  22. 2026-08-21 04:14 UTCEG score recompute
  23. 2026-08-21 04:14 UTCGHSA enrichment
  24. 2026-08-20 22:55 UTCEPSS rescore
  25. 2026-08-20 04:48 UTCEG score recompute
Show 70 more
  1. 2026-08-20 04:48 UTCGHSA enrichment
  2. 2026-08-19 17:03 UTCEPSS rescore
  3. 2026-08-19 05:22 UTCEG score recompute
  4. 2026-08-19 05:22 UTCGHSA enrichment
  5. 2026-08-18 13:48 UTCEPSS rescore
  6. 2026-08-18 05:32 UTCEG score recompute
  7. 2026-08-18 05:32 UTCGHSA enrichment
  8. 2026-08-17 05:51 UTCEG score recompute
  9. 2026-08-17 05:51 UTCGHSA enrichment
  10. 2026-08-16 14:56 UTCEPSS rescore
  11. 2026-08-16 06:25 UTCEG score recompute
  12. 2026-08-16 06:25 UTCGHSA enrichment
  13. 2026-08-16 02:14 UTCEPSS rescore
  14. 2026-08-15 07:00 UTCEG score recompute
  15. 2026-08-15 07:00 UTCGHSA enrichment
  16. 2026-08-15 01:30 UTCEPSS rescore
  17. 2026-08-14 07:23 UTCEG score recompute
  18. 2026-08-14 07:23 UTCGHSA enrichment
  19. 2026-08-13 22:00 UTCEPSS rescore
  20. 2026-08-13 07:57 UTCEG score recompute
  21. 2026-08-13 07:57 UTCGHSA enrichment
  22. 2026-08-12 13:50 UTCEPSS rescore
  23. 2026-08-12 08:31 UTCEG score recompute
  24. 2026-08-12 08:31 UTCGHSA enrichment
  25. 2026-08-11 13:42 UTCEPSS rescore
  26. 2026-08-11 09:04 UTCEG score recompute
  27. 2026-08-11 09:04 UTCGHSA enrichment
  28. 2026-08-10 23:59 UTCEPSS rescore
  29. 2026-08-10 09:38 UTCEG score recompute
  30. 2026-08-10 09:38 UTCGHSA enrichment
  31. 2026-08-09 13:46 UTCEPSS rescore
  32. 2026-08-09 10:12 UTCEG score recompute
  33. 2026-08-09 10:12 UTCGHSA enrichment
  34. 2026-08-08 16:37 UTCEPSS rescore
  35. 2026-08-08 10:46 UTCEG score recompute
  36. 2026-08-08 10:46 UTCGHSA enrichment
  37. 2026-08-07 11:19 UTCEG score recompute
  38. 2026-08-07 11:19 UTCGHSA enrichment
  39. 2026-08-06 13:46 UTCEPSS rescore
  40. 2026-08-06 11:53 UTCEG score recompute
  41. 2026-08-06 11:53 UTCGHSA enrichment
  42. 2026-08-05 19:17 UTCEPSS rescore
  43. 2026-08-05 12:26 UTCEG score recompute
  44. 2026-08-05 12:26 UTCGHSA enrichment
  45. 2026-08-04 15:09 UTCEPSS rescore
  46. 2026-08-04 12:32 UTCEG score recompute
  47. 2026-08-04 12:32 UTCGHSA enrichment
  48. 2026-08-04 10:38 UTCEPSS rescore
  49. 2026-08-03 12:25 UTCEG score recompute
  50. 2026-08-03 12:24 UTCGHSA enrichment
  51. 2026-08-03 10:35 UTCEPSS rescore
  52. 2026-08-02 12:57 UTCEG score recompute
  53. 2026-08-02 12:57 UTCGHSA enrichment
  54. 2026-08-02 02:26 UTCEPSS rescore
  55. 2026-08-01 13:31 UTCEG score recompute
  56. 2026-08-01 13:31 UTCGHSA enrichment
  57. 2026-08-01 04:15 UTCEPSS rescore
  58. 2026-07-31 14:04 UTCEG score recompute
  59. 2026-07-31 14:04 UTCGHSA enrichment
  60. 2026-07-30 16:27 UTCEPSS rescore
  61. 2026-07-30 14:38 UTCGHSA enrichment
  62. 2026-07-30 12:45 UTCEG score recompute
  63. 2026-07-30 12:45 UTCGHSA enrichment
  64. 2026-07-30 01:30 UTCEPSS rescore
  65. 2026-07-29 13:18 UTCEG score recompute▲ 6.80
  66. 2026-07-29 13:18 UTCGHSA enrichment
  67. 2026-07-29 13:17 UTCMITRE cvelistV5CVSS v3 → 6.8 · severity → MEDIUM
  68. 2026-07-29 07:34 UTCNVD update
  69. 2026-07-29 06:39 UTCEG score recompute
  70. 2026-07-29 06:37 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-13605?
CVE-2026-13605 is a medium vulnerability published on July 29, 2026. The PhotoSwipe WordPress plugin through 4.1.1.1 uses the title attribute of author-supplied link markup as a lightbox caption that is written into the page DOM without escaping. Because the title attribute survives the post-content sanitization applied to users who lack the unfiltered_html…
When was CVE-2026-13605 disclosed?
CVE-2026-13605 was first published in the National Vulnerability Database on July 29, 2026, with the most recent update on July 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13605 actively exploited?
CVE-2026-13605 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 86.5% of all scored CVEs.
What is the CVSS score of CVE-2026-13605?
CVE-2026-13605 has a CVSS v3.1 base score of 6.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-13605?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13605, 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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