CVE-2019-16993

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 0.8%, top 47% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: None knownExposed: 0

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

In phpBB before 3.1.7-PL1, includes/acp/acp_bbcodes.php has improper verification of a CSRF token on the BBCode page in the Administration Control Panel. An actual CSRF attack is possible if an attacker also manages to retrieve the session id of a reauthenticated administrator prior to targeting them.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity88% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
55%
KEV
Not listed

Published

September 30, 2019

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated Aug 14, 2026
Patch available. Sources: github_commit.
generic Patch Available

[SECURITY] [DLA 1942-2] phpbb3 regression update

https://lists.debian.org/debian-lts-announce/2019/10/msg00006.html
generic Patch Available

[SECURITY] [DLA 1942-1] phpbb3 security update

https://lists.debian.org/debian-lts-announce/2019/09/msg00036.html
github_commit

commit 18abef716ecf (phpbb/phpbb)

Fix landed in phpbb/phpbb commit 18abef716ecf — awaiting tagged release

https://github.com/phpbb/phpbb/commit/18abef716ecf42a35416444f3f84f5459d573789

Affected Packages

(2 across 2 ecosystems)
Debian:8(1)
PackageVulnerable rangeFixed inDependents
phpbb33.0.12-5, 3.0.12-5+deb8u1, 3.0.12-5+deb8u2, 3.0.12-5+deb8u33.0.12-5+deb8u4—
Packagist(1)
PackageVulnerable rangeFixed inDependents
phpbb/phpbb3.0.12 ... 3.1.6-RC1 (36 versions)3.1.7-PL1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 25× 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 149 total refreshes for this CVE.

  1. 2026-09-24 13:59 UTCEPSS rescore
  2. 2026-09-23 13:43 UTCEPSS rescore
  3. 2026-09-22 14:43 UTCEPSS rescore
  4. 2026-09-21 20:28 UTCEPSS rescore
  5. 2026-09-20 20:10 UTCEPSS rescore
  6. 2026-09-18 19:22 UTCEPSS rescore
  7. 2026-09-17 19:22 UTCEPSS rescore
  8. 2026-09-16 14:04 UTCEPSS rescore
  9. 2026-09-15 03:05 UTCEPSS rescore
  10. 2026-09-13 16:42 UTCEPSS rescore
  11. 2026-09-12 14:56 UTCEPSS rescore
  12. 2026-09-11 14:48 UTCEPSS rescore
  13. 2026-09-11 09:32 UTCEPSS rescore
  14. 2026-09-08 03:22 UTCOSV refresh
  15. 2026-09-07 15:57 UTCEPSS rescore
  16. 2026-09-06 13:44 UTCEPSS rescore
  17. 2026-09-05 15:24 UTCEPSS rescore
  18. 2026-09-04 13:56 UTCEPSS rescore
  19. 2026-09-02 14:07 UTCEPSS rescore
  20. 2026-09-01 03:32 UTCEPSS rescore
  21. 2026-08-30 19:13 UTCEPSS rescore
  22. 2026-08-30 01:18 UTCEPSS rescore
  23. 2026-08-28 21:36 UTCEPSS rescore
  24. 2026-08-27 14:21 UTCEPSS rescore
  25. 2026-08-26 14:42 UTCEPSS rescore
Show 75 more
  1. 2026-08-25 13:45 UTCEPSS rescore
  2. 2026-08-24 14:11 UTCEPSS rescore
  3. 2026-08-21 23:45 UTCEPSS rescore
  4. 2026-08-21 13:44 UTCOSV refresh
  5. 2026-08-20 22:51 UTCEPSS rescore
  6. 2026-08-19 17:00 UTCEPSS rescore
  7. 2026-08-18 13:44 UTCEPSS rescore
  8. 2026-08-17 13:43 UTCEPSS rescore
  9. 2026-08-16 14:52 UTCEPSS rescore
  10. 2026-08-16 02:10 UTCEPSS rescore
  11. 2026-08-15 01:26 UTCEPSS rescore
  12. 2026-08-12 13:47 UTCEPSS rescore
  13. 2026-08-09 13:43 UTCEPSS rescore
  14. 2026-08-08 16:33 UTCEPSS rescore
  15. 2026-08-07 16:23 UTCEPSS rescore
  16. 2026-08-06 13:43 UTCEPSS rescore
  17. 2026-08-06 00:24 UTCOSV refresh
  18. 2026-08-05 19:13 UTCEPSS rescore
  19. 2026-08-04 15:05 UTCEPSS rescore
  20. 2026-08-02 02:23 UTCEPSS rescore
  21. 2026-08-01 04:12 UTCEPSS rescore
  22. 2026-07-30 16:24 UTCEPSS rescore
  23. 2026-07-30 01:27 UTCEPSS rescore
  24. 2026-07-28 15:32 UTCEPSS rescore
  25. 2026-07-26 14:51 UTCEPSS rescore
  26. 2026-07-25 14:14 UTCEPSS rescore
  27. 2026-07-24 14:14 UTCEPSS rescore
  28. 2026-07-24 14:14 UTCEPSS rescore
  29. 2026-07-23 14:15 UTCEPSS rescore
  30. 2026-07-23 01:41 UTCEG score recompute
  31. 2026-07-22 22:21 UTCEG score recompute
  32. 2026-07-22 14:05 UTCEPSS rescore
  33. 2026-07-21 15:22 UTCEPSS rescore
  34. 2026-07-21 15:22 UTCEPSS rescore
  35. 2026-07-20 17:04 UTCEPSS rescore
  36. 2026-07-20 17:04 UTCEPSS rescore
  37. 2026-07-20 05:10 UTCOSV refresh
  38. 2026-07-19 14:28 UTCEPSS rescore
  39. 2026-07-19 14:28 UTCEPSS rescore
  40. 2026-07-19 02:26 UTCEPSS rescore
  41. 2026-07-19 02:26 UTCEPSS rescore
  42. 2026-07-18 10:01 UTCEPSS rescore
  43. 2026-07-16 16:59 UTCEPSS rescore
  44. 2026-07-16 16:59 UTCEPSS rescore
  45. 2026-07-15 16:55 UTCEPSS rescore
  46. 2026-07-15 16:55 UTCEPSS rescore
  47. 2026-07-13 22:27 UTCEPSS rescore
  48. 2026-07-13 06:10 UTCEPSS rescore
  49. 2026-07-13 06:10 UTCEPSS rescore
  50. 2026-07-12 05:43 UTCEPSS rescore
  51. 2026-07-12 05:43 UTCEPSS rescore
  52. 2026-07-11 08:24 UTCEPSS rescore
  53. 2026-07-11 08:24 UTCEPSS rescore
  54. 2026-07-09 19:06 UTCEPSS rescore
  55. 2026-07-08 15:11 UTCEPSS rescore
  56. 2026-07-07 13:43 UTCEPSS rescore
  57. 2026-07-06 16:25 UTCEPSS rescore
  58. 2026-07-06 16:25 UTCEPSS rescore
  59. 2026-07-06 02:20 UTCEPSS rescore
  60. 2026-07-05 02:27 UTCEPSS rescore
  61. 2026-07-04 06:28 UTCEPSS rescore
  62. 2026-07-02 21:05 UTCOSV refresh
  63. 2026-07-01 15:03 UTCEPSS rescore
  64. 2026-07-01 15:03 UTCEPSS rescore
  65. 2026-06-30 23:20 UTCEPSS rescore
  66. 2026-06-29 14:03 UTCEPSS rescore
  67. 2026-06-28 14:04 UTCEPSS rescore
  68. 2026-06-28 04:54 UTCEPSS rescore
  69. 2026-06-28 04:54 UTCEPSS rescore
  70. 2026-06-27 03:06 UTCEPSS rescore
  71. 2026-06-25 13:47 UTCEPSS rescore
  72. 2026-06-25 13:47 UTCEPSS rescore
  73. 2026-06-24 14:03 UTCEPSS rescore
  74. 2026-06-24 14:03 UTCEPSS rescore
  75. 2026-06-23 21:31 UTCEPSS rescore

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2019-16993?
CVE-2019-16993 is a high vulnerability published on September 30, 2019. In phpBB before 3.1.7-PL1, includes/acp/acp_bbcodes.php has improper verification of a CSRF token on the BBCode page in the Administration Control Panel. An actual CSRF attack is possible if an attacker also manages to retrieve the session id of a reauthenticated administrator prior to targeting…
When was CVE-2019-16993 disclosed?
CVE-2019-16993 was first published in the National Vulnerability Database on September 30, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-16993 actively exploited?
CVE-2019-16993 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 45.2% of all scored CVEs.
What is the CVSS score of CVE-2019-16993?
CVE-2019-16993 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2019-16993?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-16993, 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.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2019-16993

Explore →

Is Your Infrastructure Affected by CVE-2019-16993?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs